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Telecommunication device, telecommunication system, method for operating a telecommunication device and computer program

Technical area

Embodiments according to the present invention relate to a telecommunication device.

Further embodiments according to the present invention relate to a telecommunication system.

Further embodiments according to the present invention relate to a method for operating a telecommunication device.

Further embodiments according to the present invention relate to a computer program for carrying out said methods.

Embodiments according to the present invention relate to a method and a method for measuring and presenting the own speech level in telephony.

Background of the invention

In recent decades, the possibilities for the transmission of speech signals or more generally audio signals have been significantly improved. In particular, it is now possible to transmit voice signals or audio signals in very many situations, for example, from home, from the office, but also on the move. For example, mobile telephony is now almost universally possible in some regions, including public places and public transport.

Although the ability to make phone calls almost anywhere has enriched or simplified many people's lives, the new opportunities also pose certain problems. For example, many people feel disturbed when another person is on the phone near them, as a phone call is often more unnatural than a direct conversation between two people. In addition, confidentiality issues have also been identified, especially when conversations that were previously conducted only from a private or office environment are now handled via mobile communication devices.

In view of this, there is a need for a concept that makes it possible to reduce the impact on others as well as confidentiality problems resulting from the use of conventional telecommunications equipment.

Summary of the invention

An embodiment according to the present invention provides a telecommunication device. The telecommunication device comprises an audio signal transmission device which is designed to receive an audio signal and to transmit it to a further telecommunication device. The telecommunications apparatus further comprises a signaling device adapted to output a signaling to obtain when (that is, for example, if a reasonable technical parameters cause for concern exists) that the audio signal for a third party is understood acoustically or disorder for Third represents.

This embodiment is based on the recognition that it is desirable to inform a user by signaling or warning if an audio signal that is transmitted by the audio signal transmission device to another telecommunication device (including for others to say for example for persons other than the Speaker on the side of the telecommunication device and the desired receiver on the side of the further telecommunication device) is understandable or if third parties (be it on the side of the user or the receiver) are disturbed by the Audiosignai.

In particular, it has been recognized that assisting the user with a signaling device included in the telecommunication device is very helpful since a user concentrating, for example, on a telephone call often does not perceive himself as "too loud." By the signaling device, the For example, the speech volume of the user of the telecommunication device and / or the speech intelligibility of the audio signal generated by the user of the telecommunication device and / or other technical conditions (for example, the type or

Arrangement of the microphone, or the question of whether a speakerphone on the part of the telecommunication device or on the side of another telecommunication device to which the audio signal is transmitted, is used or evaluated, thus a user of the telecommunication device can be supported, and it may be an impairment of Confidentiality or a disturbance of third persons are reduced or prevented.

The signaling can take place in quite different ways, for example visually and / or acoustically. The signaling can be done directly by the terminal, o-connected by a device connected to the terminal wireless or wired other device (for example, by a wireless or wired to the telecommunication device audio output device and / or by a wired or wirelessly connected to the telecommunication device another electronic device).

In embodiments, the signaling device is configured to determine or estimate whether to obtain that the audio signal is acoustically intelligible to a third party who is in an environment of the telecommunication device and that is different from a user of the telecommunication device, and to issue the signaling depending on it. In other words, the signaling device may be designed to determine or estimate how loudly the user of the audio device is speaking (the audio signal is usually generated by the user of the telecommunications device), which in turn allows conclusions to be drawn as to the degree of risk is that the audio signal for a third party, which is located in the vicinity of the telecommunication device, understandable and / or disturbing. If the signaling device recognizes (for example by evaluating one or more technical parameters) that this probability is comparatively high (for example greater than a predefined probability threshold), then the signaling device can output the corresponding signaling. Thus, a user of the telecommunications equipment is informed in time if third parties who are in his vicinity can easily hear his utterances or if he disturbs or disturbs third parties who are in his vicinity about an acceptable level. so the signaling device can output the corresponding signaling. Thus, a user of the telecommunications equipment is informed in time if third parties who are in his vicinity can easily hear his utterances or if he disturbs or disturbs third parties who are in his vicinity about an acceptable level. so the signaling device can output the corresponding signaling. Thus, a user of the telecommunications equipment is informed in time if third parties who are in his vicinity can easily hear his utterances or if he disturbs or disturbs third parties who are in his vicinity about an acceptable level.

In one embodiment, the signaling device is configured to obtain information about whether to obtain that the audio signal is for a third party located in an environment of the further telecommunication device and the audio signal

is different from the user of the other Teiekommunikationsgeräts, is acoustically understandable, and output the signaling depending on it. In this respect, the user of the telecommunication device can also be warned by the signaling if third parties could overhear what he has spoken on the part of his telecommunication partner (that is, at a location where the "further telecommunication device" is located.) This could be the case, for example. If the telecommunications partner, ie the user of the further telecommunication device, uses a loudspeaker device (or loudspeaker device), the user of the telecommunication device could thus, for example, request his telecommunication partner in response to the signaling, Confidentiality (ie, for example, turn off the loudspeaker device or loudspeaker device) or the user of the telecommunication device could also withhold confidential information that should not be disclosed to third parties, if his telecommunications device signals that the audio signal for a third party, in the environment of further telecommunication device is acoustically understandable. Thus, the user of the telecommunication device can also react if there is a risk that the confidentiality of the telephone call is not maintained. that the audio signal for a third party, which is located in the vicinity of the further Telekommuni-Kationsgeräts, acoustically understandable. Thus, the user of the telecommunication device can also react if there is a risk that the confidentiality of the telephone call is not maintained. that the audio signal for a third party, which is located in the vicinity of the further Telekommuni-Kationsgeräts, acoustically understandable. Thus, the user of the telecommunication device can also react if there is a risk that the confidentiality of the telephone call is not maintained.

In one embodiment, the signaling device may be configured to determine or assess whether to obtain that the audio signal is understandable to a third party located in its vicinity of the telecommunications device but that has at least a predetermined distance from the telecommunications device. in other words, the signaling device can determine or estimate whether the audio signal (which can be based, for example, on the language of the user of the telecommunication device) is also understandable at a significant distance from the telecommunication device. In other words, the signaling device can determine, for example, whether the speech signal has a volume or speech intelligibility that can be expected that the speech signal is understandable only close to the telecommunication device (this is the case, for example, when a user speaks directly into the microphone of his mobile phone and does not speak too loudly), or if it is to be expected that the speech signal is still at a greater distance from the telecommunication device is understandable (this is the case, for example, if the user of the telecommunication device despite relatively low background noise speaks relatively loud). Thus, the signaling device can output a signal if it is to be expected that third parties whose distance from the telecommunication device is significantly greater than a normal usage distance or speech removal can still understand the audio signal comparatively effortlessly.

In one embodiment, the signaling device is configured to evaluate the received audio signal, and to determine whether to assure that the audio signal is different for a third party located in an environment of the telecommunication device and that for a user of the telecommunication device is, is acoustically understandable. Alternatively, the signaling device can also be designed to evaluate a signal from a separate sound transducer (that is to say, for example, from a sound transducer that differs from the sound transducer used to record an electrical representation of the audio signal) in order to determine or estimate whether that the audio signal is for a third party located in an environment of the telecommunication device, and which is different from the user of the telecommunication device, is acoustically understandable. While the first option (evaluation of the typical electrical audio signal received by the audio signal transmission device) allows a particularly simple implementation, the second option (use of a separate sound transducer) brings a particularly high reliability since a second signal path is opened and thus the situation ( Speech volume or speech intelligibility) at the location of the telecommunication device (or at the location of the separate sound transducer) can also be evaluated if the audio signal, for example, from a specially mounted transducer (for example, a microphone that is close to the head of the user ) is recorded.

In one embodiment, the telecommunication device is adapted to receive a signal from the further telecommunication device indicating whether to obtain that the audio signal, after being output by a sound transducer of the further telecommunication device, for a third party located in an environment of the further telecommunication device , and which is different from a user of the further Telekommuni-kationsgeräts is acoustically understandable. The corresponding configuration makes it possible for the present telecommunication device to cooperate with a remote telecommunication device (the further telecommunication device) and to obtain information from this further telecommunication device as to whether there is a particular risk on the side of the further telecommunication device, that unauthorized (or unwanted) third parties can understand the user of the present telecommunication device. Thus, the user of the present telecommunication device receives an additional degree of control over possible unwanted listeners through the communication with the further telecommunication device. By the signaling device according to (or responding to) the signal received from the other telecommunication device pre-takes, reliable signaling can take place without the user of the present telecommunication device having to ask the user of the further telecommunication device (possibly repeated) , Thus, even important and confidential phone calls can be made relaxed.

In one embodiment, the signaling device is configured to output the signaling depending on a speech level of a user of the telecommunication device. The output of the signaling depending on the speech level (in the simplest case even based solely on the speech level) allows a comparatively simple implementation of the signaling device. Incidentally, the voice level already allows a certain statement about how great the risk is that third parties, for example, can listen to a telephone call without further notice or be disturbed by a telephone call.

In a further embodiment, the signaling device is designed to output the signaling depending on an acoustic volume of the audio signal at a location of the telecommunication device and / or depending on an electrical or digitized signal level of the received audio signal (in a representation as electrical signal). Such a realization of the signaling device allows a comparatively reliable signaling with little effort.

In a further preferred embodiment, the signaling device is designed to determine or estimate a speech intelligibility of a speech signal generated by a user of the Teiekommuni-cation device for a third party, which is located in an environment of the telecommunication device. In this case, the signaling device is preferably designed to output the signaling depending on it. This embodiment is based on the insight that the

Speech intelligibility is an important factor in deciding whether an audio signal is audible to third parties or whether the audio signal is a disruption to third parties. Thus, a speech signal with a relatively low speech intelligibility carries a comparatively lower risk that unauthorized third parties can hear why the signaling device should not output signaling in the case of speech signals with comparatively low speech intelligibility, whereas the signaling device should output signaling in the case of speech signals with comparatively better speech intelligibility , Incidentally, it has also been shown

In one embodiment, the signaling device is designed to take into account an acoustic environment of the telecommunication device in a determination or calculation of speech intelligibility. For example, noise or special circumstances of each location (attenuation, echo, etc.) are taken into account. Thus, the signaling device can receive a particularly meaningful information about whether the audio signal is acoustically understandable to third parties and / or whether the audio signal represents a disturbance for third parties. This increases the outgoing force of the signaling generated by the signaling device.

In one embodiment, the signaling device is configured to account for noise level and / or noise frequency content and / or noise modulation / noise noise and / or reverberation time in determining speech intelligibility. By considering one or more of the aforementioned criteria by the signaling device, a particularly meaningful signaling can be obtained with reasonable technical effort.

In a preferred embodiment, the signaling device is designed to determine and output information about a size of a region in which it is to be ensured that the audio signal is acoustically intelligible to third parties. For example, it may be determined or estimated in which area a ratio between the audio signal (eg speech signal) and noise will reach or exceed a certain value, whereby such a region may be interpreted by the signaling device as an area in which to obtain that the audio signal is acoustically understandable for third parties. In other words, the signaling device can generate the signaling on the assumption that the audio signal in one area is understandable to third parties or leads to a disturbance for third parties, in which the speech intelligibility (or another criterion, which may be derived, for example, from a speech level and / or speech intelligibility) reaches or exceeds a certain value. By appropriate signaling, and by outputting information about the size of the area, in which it is to be ensured that the audio signal is acoustically understandable to third parties, a user can be made aware of the dangers of listening. Determining and outputting information about the size of an area in which it is to be understood that the audio signal is acoustically intelligible to a third party allows the user to estimate whether people within the particular area pose a threat to his or her privacy Privacy of the conversation,

In a further embodiment, the signaling device is designed to determine and output a measure of interference of third parties by the audio signal. In this way, a user who is engrossed, for example, in a telephone conversation, be warned in good time before he disturbs, for example, bystanders too much. Thus, the presence of the signage device in the telecommunication device can prevent human conflict, such as a public transport brawl.

In a preferred embodiment, the telecommunication device may be designed to detect acoustic characteristics of the environment of the telecommunication device and / or usage specifications in the environment of the telecommunication device and to determine the measure of the interference of third parties in dependence thereon. Thus, it is to be assumed that, for example, in an already noisy environment, a particular audio signal (for example a telephone call) is perceived less disturbing by third parties than is the case, for example, in a quiet environment. Incidentally, for example, the signaling device may be able to accommodate special usage restrictions,

can) and in the generation of signaling to take into account. In this way, a technical measure can take account of the fact that a tolerance threshold, for example for a telephone call in a quiet zone (eg in a hospital or a sleeping compartment of a train), may be lower than in other regions. Thus, the user of the telecommunication device can be warned in time before tolerance thresholds of people are exceeded.

In another embodiment, the telecommunication device is configured to receive a fault signaling from a third party other than the other telecommunication device. In that case, the signaling device is designed to evaluate whether it is to be understood that the audio signal is acoustically intelligible to third parties or constitutes a fault for third parties, depending on the fault signaling, or to take into account the fault signaling in the evaluation. This implementation allows a third party (eg, a user of a third party device) to send a message to the telecommunication device that there is a malfunction (for example, that its user is speaking too loudly). However, the telecommunication device can, for example, not only forward such a message unreflected to the user, but also, by using the signaling device, check whether a third-party fault is actually to be obtained. Thus, on the one hand, fault signaling by a third party can be taken by the signaling device as a reason for checking whether a fault is actually being caused, not every (possibly unauthorized) fault signaling of a third party automatically leads to a disturbing notification of the user of the telecommunications device. The fault signaling by a third party may, for example, be used by the signaling device to set thresholds for determining whether signaling is being made, increase or decrease. For example, the fault signaling by the third party increase the sensitivity of the signaling device to the effect that even at lower voice levels of the user of the telecommunication device is assumed by the possibility of interference with third parties and signaling takes place.

Thus, it is achieved that disturbance signallings by third parties have an influence on the signaling device, without any disturbance signaling of a third party necessarily leading to the issuing of a signaling by signaling device (which in turn could be very disturbing for the user of the telecommunication device).

Another embodiment according to the invention provides a telecommunication device. The telecommunication device comprises an audio signal receiving device which is designed to receive an audio signal from another telecommunication device and to output it acoustically. The telecommunication device further comprises a signaling device which is designed to output a signaling if it is to be ensured that the dropped-out audio signal is acoustically intelligible to third parties or constitutes a fault for a third party.

The corresponding telecommunications device thus offers the possibility that not only interference by the voice signal of the user of the telecommunication device, but also interference can be signaled by a received from another telecommunication device and acoustically output audio signal. Thus, for example, can be signaled to the user of the telecommunication device, if it is to be ensured that third parties can understand unauthorized the said by a distant party. Similarly, it may be signaled to the user of the telecommunication device if, for example, the use of a loudspeaker function or loudspeaker function of the telephone can lead to disturbances of the fellow human beings. Furthermore, the signaling can also be compared to the wider ren, remote telecommunication device, so that the user of the other, remote telecommunication device can be made aware of it, if the confidentiality is disturbed by the fact that the spoken by him on the side of the telecommunication device is issued so loud that to ensure that third parties can listen. In that regard, the telecommunication device described herein can also interact with the telecommunications device already described above, and a Teiekommunikationsteilnehmer can be warned when his remote party, for example, the speaker device uses, so that third parties can listen. that the spoken by him on the side of the telecommunications device is issued so loud that it must be ensured that third parties can hear. In that regard, the telecommunication device described herein can also interact with the telecommunications device already described above, and a Teiekommunikationsteilnehmer can be warned when his remote party, for example, the speaker device uses, so that third parties can listen. that the spoken by him on the side of the telecommunications device is issued so loud that it must be ensured that third parties can hear. In that regard, the telecommunication device described herein can also interact with the telecommunications device already described above, and a Teiekommunikationsteilnehmer can be warned when his remote party, for example, the speaker device uses, so that third parties can listen.

In one embodiment, the signaling device may be configured to determine or assess whether to obtain that the audio signal is acoustically intelligible to a third party that is in an environment of the telecommunications device and that is different from a user of the telecommunications device. The signaling device can also be designed to output the signaling on the basis of this (that is, depending on the above-mentioned determination or estimation).

In a further embodiment, the signaling means may be arranged to determine or estimate whether to obtain that the audio signal is understandable to a third party located in an environment of the telecommunication device but which is more than a predetermined distance from the telecommunication device is. In this way, account can be taken of the fact that a "legitimate" user of the telecommunication device should perceive the received and acoustically output audio signal, while the received and audibly output audio signal for third parties, which are typically farther away from the telecommunication device than its lawful one Users, should not be understood.

In a further embodiment, the signaling device is designed to determine a signaling depending on a volume with which the audio signal is output acoustically. The exemplary embodiment is based on the recognition that the volume with which the audio signal is output acoustically represents an important criterion for whether it is to be ensured that the audio signal output is acoustically understandable for third parties or constitutes a fault for third parties.

In another embodiment, the signaling device is configured to determine the signaling depending on whether the audio signal is output via a sound transducer intended for direct playback for a single user or via a sound transducer intended for remote playback to one or more users. Thus, the signaling device can take into account, for example, the fact that an audio signal output via an internal loudspeaker of a mobile telephone is virtually incomprehensible for third parties whose ear is comparatively far away from the mobile telephone. whereas an acoustic reproduction of the received audio signal via a hands-free device (that is to say via a sound transducer intended for remote reproduction to one or more users) is typically well understood by third parties. Thus, for example, the signaling device may be configured to provide characteristics (eg, radiation characteristics) of a sound transducer used for outputting the received audio signal upon generation of the signaling or deciding whether signaling is output should or should not.

In a further embodiment, the signaling device is designed to determine or estimate a speech intelligibility of a speech signal generated by a transducer of the telecommunication device for a third party who is located in an environment of the telecommunication device. The signaling device may in this case be designed to output this signaling depending on it (ie depending on the determined or estimated speech intelligibility). In this way, the signaling can be realistically adapted to the circumstances by z. B. at a given volume of the sound signal generated by the Schaliwandler the telecommunication device signaling only takes place when an ambient noise level is relatively low (but not,

In a further embodiment, the telecommunication device is designed to send the signaling over a transmission path to the further telecommunication device. In this way, a user of the further telecommunication device can be signaled that the risk of being listened to by an unauthorized third party exists, whereupon the user of the further telecommunication device can, for example, adapt his telephoning behavior.

Another embodiment provides a telecommunication system for transmitting an audio signal from a first telecommunication device to a second telecommunication device. The telecommunication system comprises a first telecommunication device with an audio signal transmission device which is designed to receive an audio signal from a user and to transmit it to another telecommunication device. The telecommunication system further comprises a second telecommunication device having an audio signal receiving device adapted to receive and acoustically output an audio signal from the first telecommunication device and a signaling device configured to issue a signaling signal to the first telecommunication device if needed is the audio signal output by the second telecommunication device is acoustically intelligible to third parties or represents a disturbance for third parties. The first telecommunication device further comprises signaling means arranged to issue signaling in response to a signaling signal received from the second telecommunication device to signal to a user of the first telecommunication device that the call is to be routed through the second telecommunication device Telecommunications device output audio signal is acoustically understandable to third parties or constitutes a disturbance for third parties. By the corresponding system concept, for example, a user of the first telecommunication device can be warned if his voice signal is output so loud on the part of the second telecommunication device, that this is understandable for third parties or that this disturbs third parties. Thus, security holes can be kept low in communication via the telecommunications equipment.

Another embodiment provides a method for operating a telecommunications device. The method comprises receiving an audio signal and transmitting the audio signal to another telecommunication device. The method also includes outputting a signaling if it is to be ensured that the audio signal is acoustically intelligible to third parties or constitutes a fault for third parties. The method is based on the same considerations as the telecommunication devices described above.

Another embodiment provides another method for operating a telecommunications device. This method includes receiving an audio signal from another telecommunication device and audibly outputting the received audio signal. The method further comprises outputting a signaling if it is to be ensured that the output audio signal is acoustically intelligible to third parties or constitutes a fault for third parties. This method is also based on the same considerations as the telecommunication devices described above.

Another embodiment provides a computer program for performing said methods when the computer program is run on a computer.

The computer program is likewise based on the same considerations as the methods mentioned or the telecommunication devices mentioned.

Fiqurenkurzbeschreibunq

Embodiments according to the present invention will be explained below with reference to the accompanying figures. Show it:

Fig. 1 is a block diagram of a Teiekommunikationsgeräts according to an embodiment of the present invention;

Fig. 2 is a block diagram of a telecommunication device according to another embodiment of the present invention;

3 shows a block diagram of a telecommunication device according to a further embodiment of the present invention;

4 is a block diagram of a telecommunication device according to another embodiment of the present invention;

5 is a block diagram of a signaling device according to an embodiment of the present invention;

Fig. 6 is a block diagram of a telecommunication device according to an embodiment of the present invention;

Fig. 7 is a block diagram of a telecommunication system according to an embodiment of the present invention;

FIG. 8 is a flowchart of a method according to an embodiment of the present invention; FIG. and

9 is a flow chart of a method according to another embodiment of the present invention.

Detailed description of the embodiments

1. Ausführunqsbeispiel according to FIG. 1

Fig. 1 shows a block diagram of a telecommunication device according to an embodiment of the present invention.

The telecommunications device 100 is configured to receive an audio signal 110 to be transmitted, and to provide based thereon a transmission signal 112 comprising the audio signal to be transmitted in coded or uncoded representation. The telecommunications device 100 is further configured to issue a signaling 120 to a user. The telecommunication device 100 comprises an audio signal transmission device 130, which is designed to receive the audio signal 110 and to transmit it to a further telecommunication device. For this purpose, the transmission signal 112 is preferably provided. The telecommunication device 100 further comprises a signaling device 140, which is designed to output the signaling 120, if it is to be obtained,

The mode of operation of the telecommunications device 100 will be explained in more detail below. Here, it is assumed that a user of the telecommunication device 100 generates an audio signal (for example a voice signal, but alternatively also a music signal or another audio signal) as an acoustic signal. This acoustic signa! can either be picked up directly by the telecommunications device 100 (eg, using a microphone included in the telecommunications device 100), or an electrical or optical signal can be generated by an external sound transducer, which is the acoustic signal generated by the user of the telecommunications device 100 Signal represents. This electrical, optical or digitized representation of the acoustic signal is referred to herein as "audio signal" denotes as the acoustic signal that gives the user of the telecommunication device 100 of itself. The audio signal transmission device 130 can thus process the electrical or optical representation or digitized version of the audio signal and convert it into a suitable signal form which is suitable for transmission to a further telecommunication device. The transmission signal 112, which in addition to possible additional information (for example signaling information, error protection information, metadata information, etc.) represents in particular the audio signal 110 to be transmitted, can be adapted to a transmission medium used. For example, the transmission signal 112 may be adapted for transmission in a telephone network. Alternatively, the transmission signal 110 may be adapted for transmission in a wired or wireless data network. The audio signal transmission device 130 can therefore add the audio signal to be transmitted in digital or in analog form to the transmission signal 112. For example, the audio signal transmission device 130 may digitize the audio signal 110 (if the audio signal 110 is not yet digitized) and compressively add the digitized signal to the transmission signal 112 in a bit rate efficient manner. However, the audio signal transmission device 130 may as well add the audio signal 110 to be transmitted to the transmission signal 112 in uncompressed form.

The signaling device 140 is designed to output a signaling, for example, to the user of the telecommunications device 100, if, for example, due to a rule-based evaluation of one or more audio signals or due to other signaling signals, the signaling device concludes that it is to be ensured that the audio signal is acoustically understandable to third parties and / or constitutes a disruption for third parties. In other words, the signaling device can evaluate predetermined decision rules, for example, and decide on the basis of an evaluation result whether signaling should be output or not, wherein the signaling is output, for example, if the result of the evaluation of the decision rule leads to a result,

The signaling can be done, for example, optically or acoustically. In this case, the signaling device can either directly control a signaling element (for example a light-emitting diode or an acoustic signal generator), or it can pass on a message to a higher-level sequence control which then, for example, has the final responsibility for the output of an optical or acoustic signal. The higher-level sequence control can, for example, be a microprocessor or microcontroller of the telecommunication device which is responsible for display outputs or for the generation of signaling tones.

Thus, the telecommunication device 100 makes it possible to signal to a user if there is a problematic situation in which it has to be ensured that the audio signal is acoustically intelligible to third parties or if the audio signal is a disturbance for third parties , Thus, in the first case, a confidentiality of the communication can be improved because the user by the signaling on it

can be remembered if it is to be ensured that unauthorized third parties can overhear what they have spoken. In a second case, social conflicts can be avoided by alerting the user of the telecommunications device in time if he speaks too loud (be it absolutely too loud or louder than is strictly necessary or appropriate given the background noise).

Incidentally, the signaling can also take place when the Signalisierungseinrich-tion, for example, by a corresponding message from another telecommunication device obtains information to the extent that the spoken by the user of the telecommunication device is made audible elsewhere for unauthorized third parties.

Further details with regard to the signaling device will be described below.

2. Ausführunqsbeispiel according to FIG. 2

FIG. 2 shows a block diagram of a telecommunication device 200 according to one embodiment of the present invention. The telecommunications device 200 is configured to receive an audio signal 210 to be transmitted and to provide a transmission signal 212. The telecommunication device 200 comprises an audio signal transmission device 230 and a signaling device 240. In this regard, it should be noted that for the audio signal 210, what has been said above with respect to the audio signal 110 applies. With regard to the transmission signal 212, what has been said above with respect to the transmission signal 112 applies, and with regard to the audio signal transmission device 230, what has been said above with regard to the audio signal transmission device 130 applies.

The signaling device 240 is designed to receive the audio signal 210 to be transmitted (for example in the form of a representation as an electrical or optical signal, or in the form of a representation as a digital signal). The signaling device 240 is designed to generate the signaling 220 based on the audio signal 210 to be transmitted.

For example, the signaling device 240 is designed to determine a speech level of the audio signal 210 and / or to ensure speech intelligibility of the audio signal.

osignals 210 to determine. Further, the signal generator 240 may be configured to evaluate (eg, compare to a predetermined or variable reference value) the particular speech level and / or speech intelligibility and output the signaling based on the result of the comparison or not.

Thus, it is possible to signal with little technical effort to the user of the telecommunication device, if to ensure that the audio signal is acoustically understandable to third parties or constitutes a disturbance for third parties. The result that the signaling device by evaluating the above

Evaluation rule receives is considered as relatively reliable information on whether the intelligibility of the audio signal is to be obtained by a third party or whether a fault is to be obtained for third parties.

In this respect, the corresponding telecommunications device is well suited to warn the user about possible security risks or disruptions of neighboring people.

3. Ausführunqsbeispiel according to FIG. 3rd

Fig. 3 shows a block diagram of a telecommunication device according to another

Embodiment of the invention.

The telecommunication device 300 according to FIG. 3 is designed to be transmitted

Receive audio signal 310 and provide a transmit signal 312 based thereon. Further, the telecommunications device 300 is configured to provide signaling

320 to provide. In this regard, it should be noted that the transferred

Audio signal 310 the audio signals 1 10, 210 corresponds. The transmission signal 312 corresponds to the transmission signals 1 12, 212. Thus, the above applies. The telecommunications device 310 further comprises an audio signal transmission device 330, the audio signal transmission device 230 or the audio signal transmission device

130 corresponds.

The telecommunication device 300 further comprises a sound transducer 350, which may have, for example, a microphone or a similar component. The telecommunication device 300 further comprises a signaling device 340, which depends on its basic

I

ing functionality of the signaling device 140 or the signaling device 240 can correspond. However, the signaling device 340 is designed, for example, to receive a microphone signal from the microphone or sound transducer 350. The signaling device 340 may thus, for example, use the microphone signal from the (separate) sound transducer 350 in place of the audio signal 310 to be transmitted so as to decide based on the microphone signal from the microphone 350 whether signaling 320 should be output or not. Incidentally, the signaling device 340 may additionally include the audio signal 310 to be transmitted in the evaluation, optionally as well.

Thus, it is possible, by a separate sound transducer, for example, may have a different characteristic than that for receiving the audio signal to be transmitted

310 used to obtain information about how much the language of the user of the telecommunications device 300 disturbs people in a user's environment or how well the user's utterances in an environment are perceptible (and therefore understandable by third parties). The use of a separate sound transducer may be advantageous here, since the sound transducer used to generate the audio signal 310 to be transmitted, for example, may then be optimized to receive the user's speech signal. By contrast, the further sound transducer 350, for example, can be adapted to record ambient noise more strongly than the sound transducer used to generate the audio signal 310 to be transmitted.

Audio signal 310 used sound transducer. In this respect, it should be noted that the separate

In many situations, sound transducer 350 may give a more realistic picture of how well the user's language of telecommunication device 300 is understandable to third parties, or how great the interference potential is for third parties, depending on the user's language

Telecommunications device 300 goes out.

Incidentally, it should be noted that the telecommunication device 300 has some advantages over the telecommunication devices described above, but at a higher cost through the use of a separate acoustic transducer 350.

4. Execution Example! according to FIG. 4

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4 shows a block diagram of a telecommunication device according to a further exemplary embodiment.

The telecommunication device 400 of FIG. 4 is configured to receive an audio signal 40 to be transmitted and to generate a transmission signal 412 based thereon. Further, the telecommunications device 400 is configured to receive a signaling transmission signal 450 from another telecommunications device. Incidentally, the telecommunication device 400 is configured to issue a signaling 420 to a user of the telecommunication device 400. In this regard, it should be noted that the audio signal 410 to be transmitted corresponds to the audio signals 110, 210, 310, so that the above statements still apply. It should also be noted that the transmission signal 412 corresponds to the transmission signals 112, 212, 312 already explained above.

The telecommunication device 400 further comprises an audio signal transmission device 430, which corresponds to the above-described audio signal transmission devices 130, 230, 330.

The telecommunication device 400 further comprises a signaling device 440, which is designed to receive the signaling transmission signal 450 from another telecommunication device and to output the signaling 420 based thereon. The signaling device 440 thus does not necessarily have its own signal processing, but can in a simplest case rely on the information contained in the signaling transmission signal 450. The signaling transmission signal 450 in this case comprises information indicating whether it is to be ensured that the audio signal which is typically present in the transmission signal! 412, is acoustically understandable to third parties, or constitutes a disruption to third parties.

Communication device transmitted audio signal for (typically unauthorized) third parties is acoustically understandable. For example, the further telecommunication device may insert a corresponding signaling in the signaling transmission signal 450 if the audio signal transmitted by the telecommunication device 400 is output by a hands-free device of the further telecommunication device (the output by means of a hands-free device typically entails the risk of unauthorized third parties listening in on it can).

Thus, it should be noted that the telecommunication device 400 examines, for example, the signals received from another telecommunication device as to whether they contain signaling indicating that it is to be ensured that the audio signal is acoustically intelligible to third parties and / or constitutes a disturbance for third parties , In other words, the telecommunication device 400 may search the signals or data messages contained in the further telecommunication device for such specified information, and the signaling device 440 may output the signaling 420 in response to the presence of the corresponding signaling information.

Thus, it is made possible by the interaction of the telecommunication device 400 with a correspondingly cooperative further telecommunication device to alert the user to threats to the confidentiality of what he said if these confidentiality risks exist on the part of the further telecommunication device, because, for example, in the further telecommunication device a loudspeaker or a handsfree is activated.

5. Signaling device according to FIG. 5

5 shows a block diagram of a signaling device 500 according to an embodiment of the present invention. The signaling device 500 may, for example, replace the signaling device 140, the signaling device 240, the signaling device 340 or the signaling device 440.

In this regard, it should be noted that the signaling device 500 according to FIG. 5 has a very extensive functionality. In particular, however, it is also possible that the signaling device 500 only uses a subset of the following

has written functions, wherein the signaling device 500 is typically designed to issue a signaling when it is to be ensured that the audio signal is acoustically understandable to third parties and / or constitutes a fault for third parties. However, the manner in which the signaling device recognizes that it must be ensured that the audio signal is acoustically intelligible to third parties or represents a disturbance for a third party can, however, vary within a wide range, as will be explained below with reference to FIG. 5 ,

The signaling device 500 is typically designed to receive an audio signal 510 which corresponds, for example, to the audio signals 110, 210, 310, 410 described above. Furthermore, the signaling device is designed to output a signaling 520 which signals that it is to be ensured that the audio signal is acoustically intelligible to third parties or represents a fault for third parties.

In addition to the audio signal 510, in some embodiments, the signaling device may receive another audio signal 520 from a separate sound transducer (eg, microphone), wherein the separate sound transducer is typically not part of the signaling device 500. The use of this additional audio signal 520 is to be regarded as optional.

The signaling device 500 may further be configured to receive a signal 530 from another telecommunications device. This signal 530 may be, for example, a signaling transmission signal transmitted by the further telecommunication device. The further telecommunication device is typically a telecommunication device with which the present telecommunication device, which comprises the signaling device, is in an audio communication relationship. In other words, the signaling transmission signal 530 is typically received by the signaling device from a remote audio communication device with which the telecommunications device containing the signaling device 500 is currently (eg, at the time,

However, it should be noted that the reception and the evaluation of the signaling transmission signal 530 is to be regarded as optional. On the other hand, the reception and the evaluation of the signaling transmission signal 530 can be very high for some

simple examples replace the reception and the evaluation of the audio signal 510 and the audio signal 520.

The signaling device 500 is further optionally configured to receive an environment information 540 describing, for example, characteristics of an environment in which the telecommunications device containing the signaling device is located. The environment information may be provided, for example, by an information determiner included in the telecommunication device. For example, the environment information 540 may be obtained to signal that in a particular environment there is a particular need for rest (as defined by, for example, a rest order), or that a communication prohibition (defined, for example, as a telephoning prohibition) exists in an environment. The environment information can be obtained by the telecommunication device, for example, by prohibiting or Mandatory characters are evaluated by an optical evaluation unit. Alternatively, for example, electronic prohibition or bid information (which is signaled, for example, by wired or wireless communication of corresponding messages or by the evaluation of RFID identifications, for example by way of near-field communication) can be evaluated. Alternatively to this, for example, it is also possible to draw conclusions about certain bids or prohibitions from position information determined by the telecommunication device. Thus, for example, in a public transport, in an educational institution or in a hospital, a corresponding optical or electronic signaling can take place,

Optionally, the signaling device 520 may be configured to receive a fault signaling device 542 from a third party, which is currently not in an audio communication relationship with the telecommunications device containing the signaling device, for example. Thus, a third party device, such as a cell phone, a laptop, a tablet computer, or other electronic device can send signaling to the telecommunications device containing the signaling device 500 indicating that there is a particular need for silence or that the audio signal coming from the Telecommunications device or is generated by the user, constitutes a fault for a third party. This fault signaling 542 from a third-party device can be realized, for example, by an optical, electrical or acoustic signal or transmitted by an optical, electrical or acoustic message, in some cases it is not necessary that the user of the third party device knows an electronic identifier of the signaling device containing the telecommunications device. For example, a user of a third party device may direct an optical signal transmitter (eg, an infra-red transmitter or a laser transmitter) to point to the "disturbing" telecommunication device (which includes the signaling device.) In this manner, the fault signaling 542 may be displayed from the third party device directly to the telecommunication device containing the signaling device 500. Alternatively, for example, a network provider can participate, to send the fault signaling 542 from the third party device to the telecommunication device containing the signaling device 500. If, for example, the user of the third-party device finds out that he is disturbed in a public place by other telephone users, he can notify this with a corresponding data message to the network operator responsible for him (eg telecommunications provider), and the network operator can then issue an error message 542 to all telecommunications providers -ten, which are located in a certain environment of the telecommunication device of the disturbed user. In summary, there are many different ways to provide a fault signaling 542 from a third party device to the telecommunication device containing the signaling device 500, or

The information received by the signaling device 500 (audio signal 510, additional audio signal 520, signaling transmission signal 530, environment information 540, and interference signaling 542 from a third party device) may be evaluated by the signaling device to generate a meaningful signal based thereon that indicates if it is to be ensured that the audio signal is acoustically intelligible to third parties or constitutes a fault for third parties.

In the following, the various functional units are described which generate the signaling in different situations or depending on different input information.

A first important functional unit here is the speech-level-based generation of the signaling. The speech level-based functional unit comprises a speech level determiner 550, an optional speech intelligibility determiner 560 and an evaluation unit 570. The speech level determiner 550 is configured to receive the audio signal 510 and / or the additional audio signal 520 and based thereon

Speech level information 552. For example, the voice level determiner 550 may provide the voice level information 552 such that the voice level information 552 represents a measure of an acoustic volume of the voice signal 510 and / or the additional voice signal 520 received by the separate sound transducer.

The speech intelligibility determiner 560 may be present in addition to the speech level determiner 550. However, in some embodiments, the intelligibility determiner 560 may also replace the speech level determiner 550 so that the speech level determiner 550 is no longer needed. The speech intelligibility determiner 560 is configured to receive the audio signal 510 and / or the additional audio signal 520 from the separate sound transducer and to generate speech intelligibility information 562 based thereon. The speech intelligibility determiner may include, for example, a noise level determiner 564 and (optionally) a noise parameter determiner 566. The noise level determiner 564 may be configured, for example, to determine a signal-to-noise ratio (for example, by separating speech signal components and background noise components). Alternatively, the noise level determiner 564 may also be configured to determine the intensity (eg, in terms of volume information) of a background noise. In this regard, various concepts are conceivable, which are known in the art. In particular, the noise level determiner 564 may exploit known information about characteristic properties of speech signals to separate speech signal portions of background noise signal components (which may be considered as noise signal components). to determine the intensity (for example in terms of volume information) of a background noise. In this regard, various concepts are conceivable, which are known in the art. In particular, the noise level determiner 564 may exploit known information about characteristic properties of speech signals to separate speech signal portions of background noise signal components (which may be considered as noise signal components). to determine the intensity (for example in terms of volume information) of a background noise. In this regard, various concepts are conceivable, which are known in the art. In particular, the noise level determiner 564 may exploit known information about characteristic properties of speech signals to separate speech signal portions of background noise signal components (which may be considered as noise signal components).

Thus, the noise level determiner 564 provides noise level information 564a. For example, the noise parameter determiner 566 may be configured to determine noise parameter information 566a including, for example, noise content frequency information, noise modulation modulation information, and noise stationarity information , Further, the noise parameter information 566a may also include information as to whether the noise is a speech signal (for example, a speech signal from a distant other speaker other than the user of the telecommunication device) or a general noise-like noise. The speech intelligibility determiner 560 further includes, for example, an evaluator 568, adapted to determine the speech intelligibility information 562 on the basis of the speech level information 552, the noise level information 564a, and optionally in addition the noise parameter information 566a. For example, the evaluator 568 may evaluate the various input information differently, using linear or nonlinear relationships. For example, the evaluator 568 may compare the speech level information 552 with the noise level information 564a, thus, to find out how much the speech level of a "near user" of the telecommunication device is higher than a noise level (that of the speech of distant people and / or people) For example, if the voice level information 552 is indicative,1is only slightly larger than a noise level described by the noise level information 564a, the speech intelligibility information 562 may indicate that the speech intelligibility is comparatively poor. On the other hand, when the speech level of a near-user described by the speech level information 552 is significantly larger than a noise level (described by the noise level information 564a), the speech intelligibility information 562 can display (or take a comparatively high value) comparatively high speech intelligibility. The optional noise parameter information 566a may also have an influence here. For example, if the frequency content of the noise is in a speech frequency band, this can lead to a comparatively low value of the speech intelligibility information 562. Likewise, for example, the fact that a background noise is speech-like (eg, includes voice signals from remote third parties) may result in a decreased value of the speech intelligibility information 562.

In summary, it should thus be noted that the speech intelligibility determiner 560 forms the speech intelligibility information 562 such that it is a quantitative measure of how well the speech of a near-by speaker, who is typically the user of the telecommunication device, is intelligible in view of the background noise. Both levels and properties of the speech signal and / or the background noises can be taken into account.

The evaluator 570 is designed, for example, to receive the speech level information and / or the speech intelligibility information. The evaluator 570 may further receive a threshold value 572 or a fixed one

Use threshold. The evaluator 570 includes, for example, a threshold comparator 574 configured to compare the speech level information 552 and / or the speech intelligibility information 562 with a fixed or variable threshold (where the latter may be described by the threshold information 572). For example, the threshold comparator 574 provides a comparison result 574 a that is dependent on whether a value of the speech intelligibility information 562 is greater or smaller than a fixed or variable threshold, or whether or not a value of the speech level information 552 is greater or less than one fixed or variable threshold. The evaluator 570 further includes, optionally, a region determiner 576 that is configured to to provide, based on the speech level information 552 and / or based on the speech intelligibility information 562, area information 576a indicating within which area (or within which district) a speech signal (eg, the near-user speech signal of the telecommunication device) having a predetermined one Volume or quality (defined, for example, by a voice signal to background noise volume ratio) is perceptible. For example, the area information may indicate that the speech signal (eg, the near user) has good speech intelligibility (e.g., a signal-to-noise ratio that is at least a predetermined value) within x meters of the telecommunications device (or another reference point) is understandable.

The signaling device 500 further comprises an activation 580 for an optical signaling and / or an activation 590 for an acoustic signaling. For example, the optical signaling driver 580 may be configured to drive a light-emitting diode, a text display, or a graphic display depending on the comparison result 574a, such that a warning is output when the value of the speech level information 552 and the value of the speech intelligibility information 562, respectively is greater than a predetermined fixed or variable threshold. Similarly, the triggering of 590 for acoustic signaling may initiate or issue an audible warning tone (eg, a beep and / or a voice prompt) if the value of the voice level information 552 or 552 is enabled. the value of the speech intelligibility information 562 is greater than the predetermined threshold. In addition, the audio signaling driver 580 may take into account the area information 576a, thus indicating, for example, that the speech intelligibility for a third party (of a certain quality) within a certain perimeter (e.g. x meters) or in a certain area around the telecommunication device or around the user of the telecommunication device.

Thus, the signaling 520 may be provided, for example, based on the speech level information 552 and / or speech intelligibility information 562.

In the following, further optional changes or improvements are described.

For example, the above-described signaling transmission signal 530 may be directly supplied to the optical signaling driver 580 and / or the acoustic signaling driver 590. Thus, the signaling device 500 may use the signaling transmission signal 530 provided by the further telecommunication device directly and without further evaluations to decide whether an optical signaling and / or an acoustic signaling 520 should be output. This procedure is recommended, for example, to signal that the voice signal of the user of the telecommunication device is audible on the side of a remote further telecommunication device for third parties, for example, due to the use of a hands-free device on the side of the remote further telecommunication device. The signaling device can thus very efficiently decide, based on the signaling transmission signal 530 supplied by the further telecommunication device, whether signaling 520 should take place or not.

Incidentally, in very simple embodiments, the use of the signaling transmission signal 530 may completely replace the use of the speech level information 552 and the speech intelligibility information 562, respectively.

The signaling device 500 further includes, optionally, the threshold adjuster 596. The threshold adjuster 596 is configured, for example, to receive the environmental information 540 and / or the fault signaling 542 from a third party and the threshold information 572 supplied to the threshold comparator 574, depending thereon adapt. For example, the threshold adjuster 596 may decrease the threshold information 572 (such that the threshold comparator 574 provides a comparison result 574 already at a lower speech intelligibility value of the speech intelligibility information 562 that triggers a signaling 520) when the environmental information indicates, that in a certain environment there is a comparatively low tolerance for calls (which may be the case, for example, in an environment with a rest requirement or with a ban on telephoning). In other words, if the environment information 540 indicates that a rest requirement or a telephoning prohibition exists, then earlier (ie with a comparatively low value of the speech intelligibility information), a signal is issued that a disruption for a third party is to be obtained. Similarly, a value of the threshold information 572 (as compared to a normal value of the threshold information) may be decreased when a fault signaling 542 is received from a third party through the swash value adapter 596. Thus, the fault signaling 542 from the third party device may result in a "tolerance threshold". the threshold comparator is reduced, whereby a user of the telecommunication device is already pointed at a comparatively low speech level or at comparatively low speech intelligibility on a disturbance to be attended for third parties. Thus, a potentially disturbed third party by causing a fault signaling (with his third party device) cause the user of the telecommunication device is already alerted to a possible interference of the third party with a quieter speech, with a potentially conflicting direct communication between the user of the telecommunication device and the disturbed Third party is not required. whereby a user of the telecommunication device is alerted at a comparatively low speech level or at a comparatively low speech intelligibility to a disorder to be attended for third parties. Thus, a potentially disturbed third party by causing a fault signaling (with his third party device) cause the user of the telecommunication device is already alerted to a possible interference of the third party with a quieter speech, with a potentially conflicting direct communication between the user of the telecommunication device and the disturbed Third party is not required. whereby a user of the telecommunication device is alerted at a comparatively low speech level or at a comparatively low speech intelligibility to a disorder to be attended for third parties. Thus, a potentially disturbed third party by causing a fault signaling (with his third party device) cause the user of the telecommunication device is already alerted to a possible interference of the third party with a quieter speech, with a potentially conflicting direct communication between the user of the telecommunication device and the disturbed Third party is not required.

In summary, it can thus be stated that the signaling device can use different criteria in order to decide whether a signaling (be it optically or acoustically) should be output. In very simple cases, either a volume of the audio signal 510 or a signaling transmission signal 530 may be used to decide whether or not to issue signaling (e.g., to the user of the telecommunication device containing the signaling device). Additional details can also be evaluated, such as speech intelligibility. Furthermore, the surrounding situation (via the environment information 540) or signaling of disturbed third parties (via the fault signaling 542 from a third-party device) can also be taken into account,

6. Ausführunqsbeispiel according to FIG. 6

6 shows a block diagram of a telecommunication device according to a further embodiment.

The telecommunication device 600 is configured to receive a (forward) audio broadcast signal 610 from another remote telecommunication device. The audio transmission signal 610 may correspond, for example, to the transmission signal 1 12, 212, 312, 412, as explained above. The telecommunication device 600 is further configured to output a transmitted audio signal 620. For example, the output transmitted audio signal 620 may substantially (except for losses due to transmission) correspond to the audio signal 1 10,210,310 received by the other telecommunication device.

The telecommunication device is further designed to issue a signaling 630, 640 to the user of the telecommunication device 600 or to the other telecommunication device.

The telecommunication device 600 comprises, for example, an audio signal receiving device 650 which is designed to receive an audio signal (for example in the form of the audio transmission signal 610) from another telecommunication device (eg from the "other" telecommunication device) and to output it acoustically (eg as a transmitted telecommunication device) Audio signal 620).

The intelligibility recognizer / trouble recognizer 660, which may also be considered a signaling device, is configured to issue a signaling 630, 640 when it is to be understood that the audio signal being output is acoustically intelligible to third parties or constitutes a disturbance to third parties. Thus, the intelligibility recognizer / trouble recognizer 660 may, for example, obtain information related to the volume of the audio signal 620 (output acoustically). Alternatively, or additionally, the intelligibility recognizer / trouble recognizer 660 may receive and process information about how the transmitted audio signal is output. For example, the intelligibility recognizer / disturbance recognizer 660 may receive information about how the transmitted audio signal is output, Thus, for example, whether the transmitted audio signal is output via a sound transducer optimized for a single listener or via a sound transducer optimized for a plurality of listeners. If, for example, the intelligibility recognizer recognizes that the transmitted audio signal is being output by a hands-free device or monitoring device, this can cause a signalization or, for example, a loudness threshold from which signaling is output can be reduced. On the other hand, if the intelligibility recognizer detects that the audio being transmitted is via a headset, or via a cell phone speaker optimized for direct sound output to the earphone user's ear, then signaling may be suppressed, or the volume threshold, from the signaling takes place, are relatively high. In this respect, the type and characteristics of the sound transducer can be taken into account by the intelligibility recognizer / fault detector when deciding whether to signal or not. Incidentally, it should be noted that the intelligibility recognizer / trouble recognizer 660 may alternatively or additionally also include one or more of the functionalities of the signing means 500. For example, the intelligibility recognizer 616 may also receive information from a separate sound transducer that substantially corresponds to the separate sound transducers 520 described with reference to FIG. 5. For example, the intelligibility recognizer / trouble recognizer 660 may include the functionalities of the speech level determiner 550, the speech intelligibility determiner 560, the evaluator 570 and the controls 580, 590 for the optical or acoustic signaling. Also, a threshold adjuster 596 may be included in the intelligibility recognizer / trouble recognizer 660.

It should also be noted that the signaling can take place in different ways. For example, the signaling 630 may be made to the user of the telecommunication device 600. In this case, signaling devices can be used, as have been described above in connection with the signaling device 500. In other words, the signaling 630 may correspond, for example, to the signaling 520.

Alternatively, however, the signaling can also take place as signaling 640 with respect to another telecommunication device. This is particularly useful if the signaling 640 carries information that it must be ensured that the audio signal is audible to third parties. Thus, for example, the telecommunication device 600 may signal to another telecommunication device from which it receives the audio broadcast signal 610 when the broadcast audio signal 620 is output such that it is to be accessed by (unauthorized) third parties located in the vicinity of the telecommunication device 600, is understandable.

On the other hand, the telecommunication device 600 may also signal to its own user if it is to be ensured that the acoustically transmitted transmitted audio signal 620 is acoustically intelligible to third parties and / or constitutes a fault for third parties.

In other words, the telecommunication device with the intelligibility recognizer / trouble recognizer can issue, if any, either the other telecommunication device from which it receives the audio transmit signal 610 or its own user, or both, a corresponding signaling 630, 640 is that the transmitted audio signal is acoustically understandable to third parties or constitutes a fault for third parties. Details of who the signaling is spent on (users of the telecommunications device 600, other telecommunications device) vary from embodiment to embodiment as discussed.

7. System according to FIG. 7

Fig. 7 shows a block diagram of a telecommunication system according to an embodiment of the present invention.

The telecommunication system 700 according to FIG. 7 comprises a first telecommunication device 704 and a second telecommunication device 754. The first telecommunication device 704 receives an audio signal 710 to be transmitted and generates, based thereon, an (forward) audio transmission signal 712 that goes to a second telecommunication device 754 is transmitted. The first telecommunication device 704 further provides signaling to its user 720 or outputs this signaling to its user (from which, for example, the audio signal 710 to be transmitted is substantially derived).

The second telecommunication device 754 receives the (forward) audio transmission signal 712 (wherein the transmission from the first telecommunication device 704 to the second telecommunication device 754 may be via a communication network such that one or more transmission devices, switching devices, and the like between the first Telecommunication device 704 and the second telecommunication device 754 are connected). The second telecommunication device 754

outputs a transmitted audio signal 770 (typically in acoustic form) to a user. Further, the second telecommunication device 754 provides a signaling transmission signal 790 which is transmitted to the first telecommunication device 704 (eg, via the communication network).

The first telecommunication device 704 comprises, for example, an audio signal transmission device 730 which is designed to receive the audio signal 710 from the user and to transmit it to the further (second) telecommunication device 754 (for example in the form of the (forward) audio transmission signal 712). ,

The second telecommunication device includes an audio signal receiving device 760 configured to receive the audio signal from the first telecommunication device 704 (eg, in the form of the audio broadcast signal 712) and to output acoustically (eg, in the form of the transmitted audio signal 770). The second telecommunication device 754 further comprises a signaling device 764, which is designed to output a signaling signal to the first telecommunication device (eg the signaling transmission signal 790), if it is to be ensured that the audio signal 770 output by the second telecommunication device is acoustically understandable for third parties or a disruption to third parties. Incidentally, the first telecommunication device 704 has a signaling device 740 which is designed to

The telecommunication system 700 thus enables, through the interaction of the first telecommunication device 704 and the second telecommunication device 754, that a user of the first telecommunication device is informed by the signaling 720 if the transmitted audio signal 770 acoustically output on the side of the (typically removed) second telephony device 754 Represents a disturbance for third parties, or if it is to be ensured that the acoustically transmitted transmitted audio signal 770 is understandable for third parties. Thus, the user of the first telecommunication device 704 can adapt his telephoning behavior or ask the user of the second telecommunication device 754 to avoid disturbances of third parties or to pay more attention to the confidentiality of the telephone call.

Incidentally, it should be noted that the first telecommunication device 704 may correspond to, for example, the telecommunication device 400 described above. The second telecommunication device 754 may, for example, correspond to the telecommunication device 600 described above.

However, the functionalities of the telecommunication devices 100, 200, 300 described above can likewise be integrated into the telecommunication devices 704, 754 in order to further extend their functionality.

Thus, it should be noted that the system of FIG. 7 can provide particularly good confidentiality by alerting a user even if there is a confidentiality problem at a "remote end" of a telecommunications connection.

8. Method according to FIG. 8

8 shows a flowchart of a method according to an embodiment of the present invention.

The method 800 includes receiving 810 an audio signal and transmitting 820 the audio signal to another telecommunication device. The method 800 further comprises outputting 830 a signaling if it is to be ensured that the audio signal is acoustically intelligible to third parties or constitutes a fault for third parties.

The method described here is based on the same considerations as the devices described above.

Incidentally, the present method can be supplemented by all the features and functionalities described above with regard to the devices according to the invention.

9. Method according to FIG. 9

9 shows a flow chart of a method 900 for operating a telecommunication device. The method 900 includes receiving 910 an audio signal from another telecommunications device. The method 900 further includes audibly outputting 920 the received audio signal. The method 900 further comprises outputting 930 a signaling if it is to be ensured that the output audio signal is acoustically intelligible to third parties or constitutes a fault for a third party.

The method 900 is based on the same considerations as the devices described above. Incidentally, the method 900 can be supplemented by all features and functionalities as described above with regard to the devices according to the invention.

10. Conclusion and other aspects

In the following, some aspects of the method explained above or of the above-described method for measuring and presenting a separate speech level in telephony are described.

Embodiments of the present invention are based inter alia on the knowledge that mobile telephony allows telephoning at almost any location in the world. It has been recognized that this is often to the chagrin of people in the vicinity of the telephonist, who will have to follow the speaker's orator's statements. It has been recognized that this is particularly drastic or problematic when the Teiefonierer speaks particularly loud. Observations have shown that it is often not at all intended by the televiewer (for example, a user of a telecommunication device) to speak very loudly. However, it has been recognized that loud speaking is practically automatic if the connection is bad or on the opposite side (in the distant place,

A first aspect of the invention is a measurement of the voice caused by the televiewer (eg, by the user of the telecommunication device 100, 200, 300)

Level at the nearby location (ie at the place where the telephone operator or its telecommunication device 100,200,300 is located) and based on a representation of the level in an appropriate manner, eg on a screen of Mobilteiefons (ie, for example, the telecommunications device 100,200,300) about when telephoning with headset (eg "headset") or on a screen connected to the device, such as a smart watch (eg. "Apple Smartwatch") or by playing a special acoustic signal (audio note or "audio icon"), which particular volume indicated in the near place.

A second aspect of the invention is like the first aspect, but alternatively a determination of speech intelligibility (e.g., speech intelligibility information 562) based on various quantities describing the listening situation in the near room, ie at least speech level of the telephonist (e.g. 552). Possible but not exhaustive extensions in terms of the detected quantities can also be its noise level and frequency content and the nature of the noise (modulation, other speakers, continuous background noise, and others) in the near room, reverberation time, and others.

A third aspect of the invention is like the first or the second aspect, but with a visualization of how the speech level or speech intelligibility is distributed in an environment (for example, by displaying the area information 576a). It could, for example, be shown that 100% of one's own voice is still to be understood four meters away. This can be very impressive for a user, for example, when he is looking around in a public transport (eg in the train) and determines who can hear or listen to everything.

A fourth aspect of the present invention is like the first aspect or the second aspect or the third aspect, however, wherein the voice output of the remote speaker (ie, for example, a user of a remote telecommunication device 400 in a voice connection with the own telecommunication device 600) over the Loudspeaker (for example, the output of the transmitted audio signal 620) either during normal telephoning or handsfree as in the first aspect of the invention, the second aspect of the invention or the third aspect of the invention detected, determined and displayed visually or acoustically (for example via the signaling 630 or the signaling 640).

According to a fifth aspect, the result, as determined in the fourth aspect, is displayed at a remote location (eg, at a remote telecommunications device 400), such that the remote speaker (eg, the user of the remote telecommunications device 400, eg the telecom munication device 400 providing the forward transmit signal 610 or receiving the signaling transmit signal 640) can understand how well it is understood by third parties at the nearby location (eg, at the location of the telecommunications device).

A further, sixth aspect of the present invention is as one of the previously described aspects (Aspects 1 to 5) but with a different measurand, which is then illustrated. It would be conceivable, for example, a "nuisance factor" or "annoyance factor", which directly reflects the "annoyance" achieved in the unwanted listening. For example, this value could be higher when telephoning in a compartment where telephoning is prohibited (for example, environment information 540 may be evaluated).

Some or all of the features of the inventive aspects described above may be realized by the telecommunications devices described herein or the associated methods.

Further suggestions for the actual realization can be found, for example, in European Patent Application EP 2 247 082 A1. According to the present invention, however, it is achieved that a speaker in a remote location can avoid being understood by third parties. Thus, in embodiments of the invention, a different form of representation has been made than is conventionally the case.

5. Implementation alternatives

Although some aspects have been described in the context of a device, it will be understood that these aspects also constitute a description of the corresponding method, so that a block or device of a device is also to be understood as a corresponding method step or feature of a method step , Similarly, aspects described in connection with or as a method step also represent a description of a corresponding block or detail or feature of a corresponding device. Some or all of the method steps may be performed by a hardware device (or using a hardware device). Apparatus), such as a microprocessor, a programmable computer or an electronic circuit.

Depending on particular implementation requirements, embodiments of the invention may be implemented in hardware or in software. The implementation may be performed using a digital storage medium, such as a floppy disk, a DVD, a Blu-ray Disc, a CD, a ROM, a PROM, an EPROM, an EEPROM or FLASH memory, a hard disk, or other magnetic disk or optical memory are stored on the electronically readable control signals that can cooperate with a programmable computer system or cooperate so that the respective method is performed. Therefore, the digital storage medium can be computer readable.

Thus, some embodiments according to the invention include a data carrier having electronically readable control signals capable of interacting with a programmable computer system such that one of the methods described herein is performed.

Alternatively, embodiments of the present invention may be implemented as a computer program product having a program code, wherein the program code is operable to perform one of the methods when the computer program product runs on a computer.

The program code can also be stored, for example, on a machine-readable carrier.

Other embodiments include the computer program for performing any of the methods described herein, wherein the computer program is stored on a machine-readable medium.

In other words, an embodiment of the method according to the invention is thus a computer program which has a program code for carrying out one of the methods described herein when the computer program runs on a computer.

A further embodiment of the inventive method is thus a data carrier (or a digital storage medium or a computer-readable medium) on which the computer program is recorded for carrying out one of the methods described herein. The data carrier, the digital storage medium or the computer-readable medium are typically representational and / or non-transient or non-transient.

A further embodiment of the method according to the invention is thus a data stream or a sequence of signals, which represents the computer program for performing one of the methods described herein. The data stream or the sequence of signals may be configured, for example, to be transferred via a data communication connection, for example via the Internet.

Another embodiment includes a processing device, such as a computer or programmable logic device, that is configured or adapted to perform one of the methods described herein.

Another embodiment includes a computer on which the computer program is installed to perform one of the methods described herein.

Another embodiment according to the invention comprises a device or system adapted to transmit a computer program for performing at least one of the methods described herein to a receiver. The transmission can be done, for example, electronically or optically. The receiver may be, for example, a computer, a mobile device, a storage device or a similar device. For example, the device or system may include a file server for transmitting the computer program to the receiver.

In some embodiments, a programmable logic device (eg, a field programmable gate array, an FPGA) may be used to perform some or all of the functionality of the methods described herein. In some embodiments, a field programmable gate array may cooperate with a microprocessor to perform one of the methods described herein. Generally, in some embodiments, the methods are performed by any hardware device. This may be a universal hardware such as a computer processor (CPU) or hardware specific to the process, such as an ASIC.

The devices described herein may be implemented using, for example, a home appliance, or using a computer, or using a combination of a hardware device and a computer.

The devices described herein, or any components of the devices described herein, may be implemented at least in part in hardware and / or software (computer program).

The methods described herein may be implemented, for example, using a hardware device, or using a computer, or using a combination of a hardware device and a computer.

The methods described herein, or any components of the methods described herein, may be performed at least in part by hardware and / or by software.

The embodiments described above are merely illustrative of the principles of the present invention. It will be understood that modifications and variations of the arrangements and details described herein will be apparent to others of ordinary skill in the art. Therefore, it is intended that the invention be limited only by the scope of the appended claims, rather than by the specific details presented in the description and explanation of the embodiments herein.

In the following, further embodiments and applications according to aspects of the present invention will be described. These aspects may optionally be combined with all of the embodiments described herein.

According to one aspect of the present invention, an estimate of speech understanding (by a third party) in the vicinity of the speaker is used, for example, to determine or decide whether to cause the audio signal to be acoustically intelligible to a third party.

Another possible application scenario according to one aspect of the invention is as follows: A user conducts a confidential conversation at a table with a conversation partner. The user then places on the table a device (such as a telecommunications device) that says or indicates or signals whether the conversation can be overheard by a human (without technical aids) nearby. This device, according to one aspect of the invention, may be a telecommunications device and may, for example, evaluate (estimated) speech intelligibility (eg, a signal-to-noise ratio).

claims

1. telecommunication device (100; 200; 300; 400; 704) having the following features:

audio signal transmission means (130; 230; 330; 430; 730) adapted to receive an audio signal (110; 210; 310; 410; 710) and transmit it to another telecommunication device (600; 754); and

signaling means (140; 240; 340; 440; 500; 740) adapted to output a signaling (120; 220; 320; 420; 520; 720) if it is to be arranged that the audio signal (1 10; 210; 310; 410; 620; 710; 770) is acoustically intelligible to third parties or constitutes a fault for third parties.

The telecommunications device (100; 200; 300; 400; 704) of claim 1, wherein the signaling device is configured to determine or estimate whether to obtain the audio signal for a third party located in an environment of the telecommunications device (100 ; 200; 300; 400; 704), which is different from a user of the telecommunication device, is acoustically understandable, and to output the signaling depending thereon.

A telecommunications device (400; 704) according to claim 1 or 2, wherein the signaling means (440; 500) is adapted to obtain information (542; 790) as to whether to cause the audio signal (410; 620; 770) for a third party who is in an environment of the further telecommunication device (600: 754) and which is different from a user of the further telecommunication device, is acoustically intelligible, and to output the signaling (420; 720) depending thereon.

A telecommunication device (100; 200; 300; 400; 704) according to any one of claims 1 to 3, wherein the signaling means is arranged to determine or estimate whether to obtain the audio signal for a third party located in an environment of the telecommunication device (100; 200; 300; 40ü; 704), but which has more than a predetermined distance from the telecommunication device.

A telecommunications device (100; 200; 300; 704) according to any one of claims 1 to 4, wherein the signaling means is arranged to evaluate the received audio signal (1 10; 210; 310; 510) to determine or estimate whether arrange that the audio signal (1 10; 210; 310; 510) for a third party located in an environment of the telecommunication device (100; 200; 300; 704) and different from a user of the telecommunication device is acoustically intelligible and / or wherein the signaling device is adapted to evaluate a signal from a separate sound transducer (520) to determine or estimate whether to obtain that the audio signal is for a third party located in an environment of the telecommunications device, and which is different from a user of the telecommunication device,is acoustically understandable.

The telecommunication device (400; 704) of any one of claims 1 to 5, wherein the telecommunication device is adapted to receive a signal (450; 530; 790) from the further telecommunication device (600; 754) indicating whether to obtain by the audio signal (410; 510; 620; 770) being output by a sound transducer of the further telecommunication device (600; 754) for a third party located in an environment of the further telecommunication device and that of a user further Telecommunications equipment is different, acoustically understandable.

A telecommunication device (100; 200; 300; 704) according to any one of claims 1 to 6, wherein the signaling means (130; 230; 330; 500; 740) is adapted to perform the signaling dependent on a speech level of a user of the telecommunication device (100, 200, 300, 704).

A telecommunications device (100; 200; 300; 704) according to any of claims 1 to 7, wherein the signaling device (130; 230; 330; 500; 740) is adapted to control the signaling in dependence on an acoustic volume of the audio signal at a location of the telecommunication device and / or depending on an electrical or digitized signal level of the received audio signal (1 10, 210, 310, 710).

A telecommunications device (100; 200; 300; 704) according to any one of claims 1 to 8, wherein the signaling means (130; 230; 330; 500: 740) is adapted to provide a

Speech intelligibility of a speech signal generated by a user of the telecommunication device (100; 200; 300; 704) for a third party located in an environment of the telecommunication device, and wherein the signaling device is adapted to output the signaling depending on it. ben.

The telecommunications device (100; 200; 300; 704) of claim 9 wherein the signaling device (130; 230; 330; 500; 740) is adapted to accommodate an acoustic environment of the telecommunications device in determining or calculating (560) the speech intelligibility ,

The telecommunications device (100; 200; 300; 704) of claim 10, wherein the signaling device (130; 230; 330; 500; 740) is adapted to provide a noise floor and / or noise floor content and / or noise modulation; and / or noise noise and / or reverberation time in determining or calculating (560) speech intelligibility.

A telecommunications device (100; 200; 300; 400; 704) according to any one of claims 1 to 11, wherein said signaling means (130; 230; 330; 340; 500; 740) is adapted to transmit information (576a) over a Size of an area in which to make sure that the audio signal is acoustically understandable for third parties to determine and output.

A telecommunications device (100; 200; 300; 400; 704) according to any one of claims 1 to 12, wherein the signaling means is arranged to determine and output a measure of interference of third parties by the audio signal.

14. The telecommunication device (100; 20Q; 300; 400; 704) according to claim 13, wherein the telecommunication device is designed to detect acoustic properties of the environment of the telecommunication device and / or usage specifications in the environment of the telecommunication device and to measure the amount of the telecommunication device Disturbance of third parties in dependence to determine.

A telecommunications device (100; 200; 300; 400; 704) according to any one of claims 1 to 14, wherein the telecommunication device is adapted to provide a fault signaling (542) from a third party device that is from the further telecommunication device (600: 754). is different, and wherein the signaling device is designed to provide an evaluation whether to ensure that the audio signal is audible to third parties or represents a fault for third parties, depending on the fault signaling to trigger, or to the fault Signaling to be considered in the evaluation.

16. Telecommunication device (600, 754) with the following features:

audio signal receiving means (650; 760) adapted to receive and acoustically output an audio signal from another telecommunication device (100; 200; 300; 400; 704); and

signaling means (660; 764) adapted to output a signaling (420; 530; 630; 640; 790) when it is to be understood that the output audio signal (620; 770) is acoustically intelligible to a third party or a fault for third parties.

The telecommunications device (600; 754) of claim 16, wherein the signaling device (660; 764) is adapted to determine or estimate whether to obtain the audio signal (620; 770) for a third party located in an environment of the telecommunication device, which is different from a user of the telecommunication device, is acoustically understandable, and to output the signaling (420; 530; 630; 640; 790) depending thereon.

The telecommunication device (600; 754) according to one of claims 16 or 17, wherein the signaling device (660; 764) is adapted to determine or estimate whether to obtain the audio signal (620; 770) for a third party is in an environment of the telecommunication device, but of the telecommunication device has more than a predetermined distance, is understandable.

A telecommunications device (600; 754) according to any one of claims 16 to 18, wherein the signaling means (660; 764) is arranged to be dependent on the signaling

from a volume with which the audio signal (620; 770) is acoustically output.

The telecommunication device (600; 754) of any one of claims 16 to 19, wherein the signaling means (660; 764) is adapted to determine the signaling depending on whether the audio signal (620; 770) is in direct play for one of output to a single user specific sound transducer or via a sound transducer intended for remote playback to one or more users.

The telecommunication device (600; 754) of any of claims 16 to 20, wherein the signaling device (660; 764) is adapted to provide speech intelligibility of a speech signal generated by a transducer of the telecommunication device (600; 754) for a third party located in an environment of the telecommunication device is to determine or estimate, and wherein the signaling device is designed to output the signaling depending thereon.

The telecommunication device (600; 754) of any one of claims 16 to 21, wherein the telecommunication device is adapted to transmit the signaling (640) over a transmission path to the further telecommunication device (100; 200; 300; 400; 704) ,

A telecommunications system (700) for transmitting an audio signal (710) from a first telecommunications device (400; 704) to a second telecommunications device (600; 754), having the following characteristics:

a first party communication device (400; 704) having an audio signal transmission means (440; 730) adapted to receive an audio signal (410; 710) from a user and transmit to a second telecommunication device (600; 754); and

a second telecommunication device (600; 754) having audio signal receiving means (650; 760) adapted to receive and acoustically output an audio signal from the first telecommunication device and signaling means (660; 764) adapted to provide a signaling signal (640, 790) to the first telecommunication device, if it is to be ensured that the audio signal output by the second telecommunication device is acoustically intelligible to third parties or represents a disturbance for third parties;

said first telecommunication device having signaling means (440; 740) arranged to issue signaling (420,720) to a user of said first telecommunication device in response to a signaling signal (450; 640; 790) received from said second telecommunication device to signal that is to be ensured that the output by the second telecommunication device audio signal (620; 770) is acoustically understandable to third parties or constitutes a disturbance for third parties

24. Method (800) for operating a telecommunication device, comprising the following steps:

Receiving (810) an audio signal;

Transmitting (820) the audio signal to another telecommunications device; and

Outputting (830) a signaling if it is to be ensured that the audio signal is acoustically intelligible to third parties or represents a fault for a third party.

25. A method (900) for operating a telecommunications device, comprising the steps of:

Receiving (910) an audio signal from another telecommunications device;

audibly outputting (920) the received audio signal; and

Outputting (930) signaling if it is to be ensured that the audio signal output is acoustically intelligible to third parties or constitutes a fault for third parties.

26. Computer program for carrying out the method according to claim 24 or 25 when the computer program is executed.

27. telecommunications device (100; 200; 300; 400; 704) having the following features:

audio signal transmission means (130; 230; 330; 430; 730) adapted to receive an audio signal (1 10; 210; 310; 410; 710) and transmit it to another telecommunication device (600; 754); and

signaling means (140; 240; 340; 440; 500; 740) adapted to output a signaling (120; 220; 320; 420; 520; 720) if it is to be arranged that the audio signal (1 10; 210; 310; 410; 620; 710; 770) is acoustically intelligible to third parties or constitutes a disruption to third parties;

wherein the signaling means is adapted to evaluate the received audio signal (1 10; 210; 310; 510) to determine or estimate whether it is to care for the audio signal (1 10; 210; 310; 510) for a Third person who is in an environment of the telecommunication device (100; 200; 300; 704) and different from a user of the telecommunication device is acoustically understandable,

wherein the signaling device is adapted to evaluate a signal from a separate acoustic transducer (520) to determine or estimate whether to obtain the audio signal for a third party located in an environment of the telecommunications device and that of A user of the telecommunication device is different, acoustically understandable.

28. telecommunication device (100; 200; 300; 400; 704) having the following features:

audio signal transmission means (130; 230; 330; 430; 730) adapted to receive an audio signal (1 10; 210; 310; 410; 710) and transmit it to another telecommunication device (600; 754); and

signaling means (140; 240; 340; 440; 500; 740) adapted to output a signaling (120; 220; 320; 420; 520; 720) if it is to be arranged that the audio signal (1 10; 210; 310; 410; 620; 710; 770) is acoustically intelligible to third parties or constitutes a disruption to third parties;

wherein the telecommunication device is adapted to receive a signal (450; 530; 790) from the further telecommunication device (600; 754) indicating whether to arrange for the audio signal (410; 510; 620; 770) to be output by a sound transducer of the further telecommunication device (600, 754) for a third party, which is located in an environment of the further telecommunication device, and which is different from a user of the further telecommunication device, acoustically understandable.

29. telecommunication device (100; 200; 300; 400; 704) having the following features:

audio signal transmission means (130; 230; 330; 430; 730) adapted to receive an audio signal (1 10; 210; 310; 410; 710) and transmit it to another telecommunication device (600; 754); and

signaling means (140; 240; 340; 440; 500; 740) adapted to output a signaling (120; 220; 320; 420; 520; 720) if it is to be arranged that the audio signal (1 10; 210; 310; 410; 620; 710; 770) is acoustically intelligible to third parties or constitutes a disruption to third parties;

wherein the signaling device (130; 230; 330; 500; 740) is adapted to provide speech intelligibility of a speech signal generated by a user of the telecommunication device (100; 200; 300; 704) for a third party located in an environment of the telecommunication device. to determine or estimate, and wherein the signaling means is adapted to output the signaling depending thereon;

wherein the signaling device (130; 230: 330; 500; 740) is adapted to account for an acoustic environment of the telecommunications device in determining or calculating (560) the speech intelligibility.

30. telecommunication device (100; 200; 300; 400; 704) having the following features:

audio signal transmission means (130; 230; 330; 430; 730) adapted to receive an audio signal (1 10; 210; 310; 410; 710) and transmit it to another telecommunication device (600; 754); and

a signaling device (140; 240; 340; 440; 500; 740) adapted to output a signaling (120; 220; 320; 420; 520; 720) if it is to be arranged that the audio signal (110; 210 ; 310; 410; 620; 710; 770) is acoustically intelligible to third parties or constitutes a disruption to third parties;

wherein the signaling means (130; 230; 330; 340; 500; 740) is adapted to determine and output information (576a) about a size of an area in which to assure that the audio signal is acoustically intelligible to third parties ,

31. telecommunication device (100; 200; 300; 400; 704) having the following features:

audio signal transmission means (130; 230; 330; 430; 730) adapted to receive an audio signal (1 10; 210; 310; 410; 710) and transmit it to another telecommunication device (600; 754); and

signaling means (140; 240; 340; 440; 500; 740) adapted to output a signaling (120; 220; 320; 420; 520; 720) if it is to be arranged that the audio signal (1 10; 210; 310; 410; 620; 710; 770) is acoustically intelligible to third parties or constitutes a disruption to third parties;

wherein the signaling device is adapted to determine and output a measure of interference of third parties by the audio signal.

32. telecommunication device (100; 200; 300; 400; 704) having the following features:

audio signal transmission means (130; 230; 330; 430; 730) adapted to receive an audio signal (1 10; 210; 310; 410; 710) and transmit it to another telecommunication device (600; 754); and

signaling means (140; 240; 340; 440; 500; 740) adapted to output a signaling (120; 220; 320; 420; 520; 720) if it is to be arranged that the audio signal (1 10; 210; 310; 410; 620; 710; 770) is acoustically intelligible to third parties or constitutes a disruption to third parties;

wherein the telecommunications device is adapted to receive a fault signaling (542) from a third party device different from the further telecommunications device (600; 754), and wherein the signaling device is adapted to provide an evaluation of whether in that the audio signal is acoustically intelligible to third parties or constitutes a fault for third parties, depending on the fault signaling, or to take into account the fault signaling in the evaluation.