The present disclosure relates to display control devices, display control methods and programs.
Background technology
[0002]
　A technique for reproducing a sound field by wave field synthesis using an array speaker composed of a plurality of speaker units has been proposed (see, for example, Patent Document 1). Using this technology, you can create an effect as if there is a sound source near your ear (called object audio, etc.), and clearly reproduce the sound that differs from area to area without mixing it with the sound that is played in the adjacent area. Production (called audio partition, etc.) is possible.
Prior art literature
Patent documents
[0003]
Patent Document 1: Japanese Unexamined Patent Publication No. 2013-128314
Outline of the invention
Problems to be solved by the invention
[0004]
　In such fields, it is desirable that content creators who produce video and audio (hereinafter, collectively referred to as "content" as appropriate) can use tools that can easily create and edit intended content. Is done.
[0005]
　One of the purposes of the present disclosure is to provide, for example, a display control device, a display control method, and a program that enable a content creator to easily create, edit, and the like the intended content.
Means to solve problems
[0006]
　The present disclosure includes, for example, a
　display control unit that displays the position of an array speaker, a time waveform corresponding to at least one sound source, and a locus indicating a change in a localization point of the sound source in a predetermined space.
　It is a display control device.
[0007]
　In the present disclosure, for example, the
　display unit has a display control unit that displays the position of the array speaker and a plurality of playback areas corresponding to a plurality of sounds reproduced from the array speaker, and
　the size of the playback area can be changed. It is a
　display control device that is said to be.
[0008]
　In the present disclosure, for example, the
　display control unit displays on the display unit the position of the array speaker, the time waveform corresponding to at least one sound source, and the locus showing the change of the localization point of the sound source in a predetermined space.
　This is a display control method.
[0009]
　In the present disclosure, for example, the
　display control unit displays on the display unit the position of the array speaker, the time waveform corresponding to at least one sound source, and the locus showing the change of the localization point of the sound source in a predetermined space.
　It is a program that causes a computer to execute a display control method.
The invention's effect
[0010]
　According to at least one embodiment of the present disclosure, a content creator can easily create, edit, and the like the intended content. The effects described here are not necessarily limited, and any of the effects described in the present disclosure may be used. In addition, the content of the present disclosure is not construed as being limited by the illustrated effects.
A brief description of the drawing
[0011]
FIG. 1 is a block diagram showing a configuration example of a reproduction system according to an embodiment.
FIG. 2 is a block diagram showing a configuration example of a personal computer according to an embodiment.
FIG. 3 is a diagram for explaining an example of GUI according to the first embodiment.
FIG. 4 is a partially enlarged view of the GUI according to the first embodiment.
5A is a partially enlarged view of the GUI according to the first embodiment, FIG. 5B is a diagram for explaining an example of an effective area, and FIG. 5C is a diagram for explaining an example of a listening area. It is a figure for.
FIG. 6 is a diagram for explaining a GUI according to a modified example.
FIG. 7 is a diagram for explaining a GUI according to a modified example.
FIG. 8 is a diagram for explaining a GUI according to a modified example.
FIG. 9 is a diagram for explaining a GUI according to a modified example.
FIG. 10 is a diagram for explaining a GUI according to a modified example.
FIG. 11 is a diagram for explaining an example of GUI according to a second embodiment.
[Fig. 12] Fig. 12 is a diagram for explaining an example of a method of reflecting an audio reproduction area in a real space.
[Fig. 13] Fig. 13 is a diagram for explaining another method of reflecting an audio reproduction area in a real space.
FIG. 14 is a diagram for explaining a modification.
Mode for carrying out the invention
[0012]
　Hereinafter, embodiments and the like of the present disclosure will be described with reference to the drawings. The explanation will be given in the following order.

　The embodiments described below are suitable specific examples of the present disclosure, and the contents of the present disclosure are the embodiments and the like. It is not limited to.
[0013]

[Structure Example of Reproduction System]
　FIG. 1 is a diagram showing a configuration example of a reproduction system (regeneration system 1A) according to the embodiment. The reproduction system 1A includes a personal computer 10 which is an example of a display control device, and a reproduction device 20. The personal computer 10 functions as a device that allows a content creator to easily create and edit intended content, more specifically, an authoring device that designs the movement and arrangement of sound sources reproduced from the playback device 20. .. The display control device is not limited to a personal computer, and may be a tablet computer, a notebook personal computer, or the like. Data corresponding to at least one sound source (hereinafter, appropriately referred to as sound source data 30) is input to the personal computer 10 and the playback device 20.
[0014]
　The playback device 20 is a playback device that reproduces the content. The reproduction device 20 has an interface (I / F) 21 that interfaces with the outside, a signal processing unit 22, and an array speaker 23. The array speaker 23 has a plurality of (for example, 192 or 256) speaker units. The array speaker 23 may have individual speaker devices arranged at a plurality of locations.
[0015]
　The operation of the reproduction system 1A will be schematically described. Authoring related to content production is performed using the personal computer 10. The details of the GUI (Graphical User Interface) used for authoring will be described later. A metadata MD (authoring result file) is generated by authoring using the personal computer 10. This metadata MD is input to the reproduction device 20 via the I / F 21. Further, as described above, the sound source data 30 is input to the reproduction device 20 via the I / F 21.
[0016]
　The signal processing unit 22 processes the sound source data 30 based on the metadata MD. As the signal processing performed on the sound source data 30 based on the metadata MD, a known signal processing can be applied. For example, a localization process for localizing the sound image of the sound source at a predetermined location and a process for adjusting the reproduction level of the sound source can be mentioned. The sound source data 30 that has undergone signal processing by the signal processing unit 22 is supplied to the array speaker 23 and reproduced from the array speaker 23. In this way, the content is reproduced by the reproduction environment based on the metadata MD.
[0017]
[Configuration Example of Personal Computer]
　FIG. 2 is a block diagram showing a configuration example of the personal computer 10. The personal computer 10 has, for example, a control unit 101, an I / F 102, a communication unit 103, a display unit 104, an input unit 105, and a storage unit 106.
[0018]
　The control unit 101 is composed of a CPU (Central Processing Unit) and the like, and has a ROM (Read Only Memory) and a RAM (Random Access Memory) (not shown). The ROM stores a program or the like that is read and executed by the CPU. The RAM is used as the work memory of the CPU. The control unit 101 functions as a display control unit that controls the contents displayed on the display unit 104 such as the GUI described later.
[0019]
　The I / F 102 interfaces with an external device. For example, the metadata MD generated by the personal computer 10 is supplied to the reproduction device 20 via the I / F 102.
[0020]
　The communication unit 103 has a configuration for the personal computer 10 to communicate with another device, and has functions necessary for communication such as an antenna and a modulation / demodulation function. The personal computer 10 can be connected to a network such as the Internet via the communication unit 103.
[0021]
　The display unit 104 is composed of a liquid crystal display, an organic EL display, and the like. The GUI for authoring, which will be described later, is displayed on the display unit 104. The display unit 104 may be configured as a touch screen so that various inputs can be received.
[0022]
　The input unit 105 is, for example, a physical button such as a pressable button or a slide button, a keyboard, a touch screen, or the like, and is a general term for a configuration that accepts a user's operation input. When an input is made to the input unit 105, an operation signal corresponding to the input is generated and output to the control unit 101. The control unit 101 executes arithmetic processing, display control, and the like corresponding to the operation signal. Various settings in the GUI, which will be described later, are made using the input unit 105.
[0023]
　The storage unit 106 is, for example, a hard disk, a memory stick (registered trademark of Sony Corporation), an SD memory card, a USB (Universal Serial Bus) memory, or the like. The storage unit 106 may be built in the personal computer 10, may be detachable from the personal computer 10, or may be both.
[0024]
　The personal computer 10 may have a configuration other than the above-described configuration. For example, the personal computer 10 may have a speaker device or the like.
[0025]
[Example of
GUI ] (Main display in GUI)
　FIG. 3 is a diagram showing an example of GUI displayed on the display unit 104. Further, FIG. 4 is an enlarged view of the portion of FIG. 3 with the reference numeral AA. In the following description, the portion with the reference numeral AA is appropriately referred to as an object map. The object map is a map corresponding to the actual space in which the content is reproduced based on the metadata MD (a map corresponding to the XY space when the space is viewed from above).
[0026]
　An example of GUI will be described in detail with reference to FIGS. 3 and 4. The position of the array speaker 23 is displayed on the object map. For example, a dotted line extending in the horizontal direction is displayed as the position of the array speaker 23 near the center of the object map. Also, the user's listening position LP is displayed. The listening position LP is not limited to one position shown in the figure, and can be set as appropriate. The size of the array speaker 23, the range displayed on the GUI, and the like are shown by reducing the actual playback location to a predetermined scale.
[0027]
　The GUI displayed on the display unit 104 includes the display of the time waveform of at least one sound source. The present embodiment includes display of time waveforms of four sound sources (hereinafter, appropriately referred to as object sound sources). As shown in FIG. 3, a display 31 relating to the time waveform of the object sound source 1, a display 32 relating to the time waveform of the object sound source 2, a display 33 relating to the time waveform of the object sound source 3, and a display 34 relating to the time waveform of the object sound source 4 are displayed. There is. The display 31 to the display 34 relating to the time waveform are displayed on the lower side of the display unit 104, for example. Of course, the display position can be changed as appropriate. In addition, the GUI includes a vertical reproduction line PL that moves from the left side to the right side on the displays 31 to 34 regarding the time waveform with the lapse of the reproduction time.
[0028]
　The personal computer 10 is configured so that the object sound sources 1 to 4 can be reproduced individually or simultaneously. Further, the displays 31 to 34 related to the time waveform may be acquired, for example, by the control unit 101 performing an FFT (Fast Fourier Transform) on each object sound source input to the personal computer 10, or the displays 31 to 34. The display data corresponding to the above may be input to the personal computer 10, and the input display data may be displayed on the display unit 104 by the control unit 101.
[0029]
　The time axis is displayed below the display related to the time waveform. For example, the time axis LN32a is displayed in parallel below the display 32 relating to the time waveform. Marks (hereinafter, appropriately referred to as keyframes) can be set on the time axis LN32a. In the present embodiment, five keyframes (keyframes KF1, KF2 ... KF5) are set on the time axis LN32a as the reproduction time of the object sound source 2 elapses. The key frames KF1 to KF5 on the time axis LN32a correspond to predetermined playback timings of the object sound source 2. The keyframes KF1 to KF5 are indicated by, for example, circles.
[0030]
　Further, the positions of keyframes KF1 to KF5 can be set on the object map. As shown in FIG. 4, keyframes KF1 to KF5 are displayed at the set positions. In order to make the correspondence easy to understand, the keyframes KF1 to KF5 on the object map are also displayed by the same circles as the keyframes KF1 to KF5 on the time axis LN32a. Thereby, it is possible to set at which position in the reproduction space the sound corresponding to the object sound source 2 reproduced at the reproduction timing of the predetermined keyframe KF attached on the time axis LN32a is reproduced. For example, when it is desired to play a playback location of the object sound source 2 near a user in the listening position LP, a keyframe KF is set at the playback location and the keyframe KF is set to the listening position LP on the object map. It should be set near. Further, since the time waveform is displayed, authoring considering the position of the object sound source and the degree of strength of the object sound source becomes easy.
[0031]
　In the present embodiment, the locus 38 is set by connecting the keyframes KF with a straight line, and the set locus 38 is automatically displayed. Therefore, the user can define the locus 38 simply by setting the keyframe KF. The locus 38 is a locus showing a change in the localization point of the sound image of the object sound source 2.
[0032]
　The GUI according to the present embodiment includes a movement mark (hereinafter, appropriately referred to as a current position) that moves the locus. For example, the current position CP moves on the locus 38. In FIGS. 3 and 4, the current position CP is indicated by a black circle. Of course, the current position CP may be displayed in another shape (star shape, etc.). The current position CP indicates the sound image localization position of the object sound source 2 according to the reproduction timing. Therefore, the current position CP moves on the locus 38 with the lapse of the reproduction time of the object sound source 2.
[0033]
　For example, the user uses the personal computer 10 to play the object sound source 2. As the reproduction time of the object sound source 2 elapses, the current position CP moves on the locus 38. With such a display, the user can visually understand how the sound source (more specifically, the position of the sound image corresponding to the sound source) moves in the reproduction space.
[0034]
　In the present embodiment, the current position CP moves between the keyframes KF at a constant speed. For example, the movement time of the current position CP is determined from the difference in the reproduction timings of the keyframes KF1 and KF2. Further, the distance between the keyframes KF1 and KF2 is determined from the respective positions of the keyframes KF1 and KF2 on the object map. The movement speed of the current position CP is automatically set based on the determined movement time and distance.
[0035]
　The display mode of the current position CP moving on the locus 38 may be changed according to the strength of the sound of the object sound source 2. For example, where the sound is strong (where the sound level is high), the size of the black circle in the current position CP is increased, and where the sound is weak (where the sound level is low), the black circle in the current position CP is large. Is made smaller. By linking the magnitude of the current position CP with the strength of the sound, it is not necessary to display a level meter or the like indicating the strength of the sound on the GUI, and the display space can be effectively used.
[0036]
　As an example of a use case, it is assumed that the object sound source 2 is a “dog running sound”. In the setting examples shown in FIGS. 3 and 4, for the user in the listening position LP, the running sound of the dog sounds like going from far to near on the right side, and finally runs through the left side of the object. Sound source 2 is actually played.
[0037]
　In the above description, the display example relating to the object sound source 2 has been described, but the display relating to other object sound sources is also performed in the same manner. With such a display, it is possible to visually understand how the sound sources are arranged in the space.
[0038]
(Display related to various settings in GUI)
　By the way, as the number of object sound sources increases, the number of loci shown on the object map increases, and it may be difficult to identify which object sound source corresponds to the locus. Therefore, in the present embodiment, the loci corresponding to each of the plurality of object sound sources are displayed in an identifiable manner.
[0039]
　For example, the colors of the trajectories corresponding to each of the plurality of object sound sources are made different. In this embodiment, the color of the locus can be set on the same GUI. For example, as shown in FIG. 3, the color corresponding to each object sound source can be set at the position of the display 51 where the characters "Color" are displayed. When the color corresponding to the object sound source is set, the locus corresponding to the object sound source is displayed in the set color. Further, in the present embodiment, the name of the object sound source can be set. For example, as shown in FIG. 3, the name corresponding to each object sound source can be set at the position of the display 52 where the characters "Name" are displayed. Further, it may be possible to set the display / non-display of the locus corresponding to the object sound source. For example, if you want to display only the locus 38 corresponding to the object sound source 2 on the object map, set only the locus 38 corresponding to the object sound source 2 to be displayed, and set the locus corresponding to the other object sound source to be hidden. Just do it.
[0040]
　By enabling the settings described above and performing display control by the control unit 101 according to the settings, there are many object sound sources, and the trajectories corresponding to each object sound source are displayed on the object map in a limited area. Even when displaying, it is possible to easily identify the individual object sound source or the trajectory corresponding to the object sound source.
[0041]
　Further, in the present embodiment, the movement pattern of the current position CP can be set. For example, the movement pattern of the current position CP can be set at the position of the display 53 where the characters "Interpolation" are displayed on the right side of the display 52. In the present embodiment, three types of movement patterns can be set as the movement patterns of the current position CP. The three types of patterns are, for example, patterns referred to as "Linear", "Step", and "Spline", respectively.
[0042]
　The pattern called "Linear" is the above-mentioned pattern in which the current position CP moves between the keyframes KF at a constant speed. The pattern called "Step" is a pattern in which the current position CP moves in a stepped manner. For example, the current position CP on the keyframe KF1 does not move even after the reproduction timing of the object sound source 2 corresponding to the keyframe KF1 has elapsed. Then, when the current playback time reaches the playback timing of the object sound source 2 corresponding to the keyframe KF2, the current position CP moves so as to jump over between the keyframes KF1 and KF2. The pattern called "Spline" is a pattern in which the current position CP moves between the keyframes KF so as to draw a quadratic curve.
[0043]
　The setting for each object sound source is performed after the cursor 55 is moved to select the object sound source to be set. FIG. 3 shows a state in which the cursor 55 is aligned with the object sound source 2, that is, a state in which the object sound source 2 is selected. In this state, it is possible to set the color and name of the locus corresponding to the object sound source 2, the movement pattern of the current position CP moving on the locus corresponding to the object sound source 2, and the like. The cursor 55 is appropriately moved by using, for example, the input unit 105.
[0044]
(Other display in GUI)
" Display of information about keyframes"
　Other display in GUI will be described. As described above, a predetermined object sound source can be selected by appropriately moving the cursor 55. In this embodiment, information about the keyframe KF set for the selected object sound source is displayed. In FIG. 3, display 61 is shown as information about the keyframe KF. For example, the display of information about the keyframes KF1, KF2 ... KF5 is arranged in order from the top.
[0045]
　The display 61 includes a display 62 relating to the reproduction timing (reproduction time) corresponding to the key frame KF and a display 63 relating to the XY coordinates on the object map of the key frame KF. Further, on the left side of the display of information regarding each keyframe KF, a display 64 showing a check box is arranged. By checking a predetermined check box on the display 64, the keyframe KF corresponding to the checked check box can be selected. FIG. 3 shows an example in which the check box corresponding to the keyframe KF3 is checked, that is, an example in which the keyframe KF3 is selected. In the present embodiment, as shown in FIG. 4, the selected keyframe KF3 is displayed with more emphasis than the other keyframes KF. For example, the keyframe KF3 is highlighted by a double circle. With such a display, the user can easily visually identify the position of the keyframe KF selected by the user on the object map.
[0046]
　Further, in the present embodiment, it is possible to set a comment for each keyframe KF. For example, a display 65 for setting a comment is arranged on the right side of the display 63. The user can select an appropriate keyframe KF from the keyframes KF1 to KF5 and use the input unit 105 to set a comment for the selected keyframe KF. For example, it is possible to set a comment in a key frame KF set with a strong intention of arranging an object sound source at a specific position in space at a certain playback timing. Then, the intention of the content creator corresponding to the comment can be easily communicated to the content user. In addition, the key frame KF can be easily managed.
[0047]
"Display of effective area" The effective area
　EA is displayed on the object map. FIG. 5A is a diagram including an example of the effective area EA on the object map, and FIG. 5B is a diagram showing only the effective area EA included in FIG. 5A extracted.
[0048]
　Even when the metadata MD is generated on the GUI of the personal computer 10, the coefficients used in the localization processing and the like in the signal processing in the signal processing unit 22 on the reproduction device 20 side are finite. That is, the range in which the effect of signal processing on the reproduction device 20 side can be obtained is finite. Therefore, in the present embodiment, the range in which the effect of signal processing can be obtained is displayed as the effective area EA. When sound is reproduced from the array speaker 23 by wave field synthesis, the area where wave field synthesis is possible is displayed as the effective area EA. With such a display, the user can visually understand the area where wave field synthesis is possible.
[0049]
"Display of listening area" The listening area
　LA is displayed on the object map. FIG. 5A is a diagram including an example of the listening area LA on the object map, and FIG. 5C is a diagram showing only the listening area LA included in FIG. 5A extracted. The listening area LA indicates a range in which the sound reproduced from the array speaker 23 can be effectively heard for a certain listening position LP. When sound is reproduced from the array speaker 23 by wave field synthesis, the listening area LA indicates an area in which wave field synthesis is effective with respect to the position of the listening position LP. The shape, size, etc. of the listening area LA change according to the listening position LP set on the object map. With such a display, the user can visually understand the area where wave field synthesis is effective for the listening position LP. The locus on the object map and the effective area EA or the listening area LA may be displayed in an identifiable manner. Although the sound reproduced outside the listening area LA is actually heard by the user, the sense of localization felt by the user is less than that of the sound reproduced in the listening area LA.
[0050]
[Modification Example of
First Embodiment] (First Modification Example) The
　GUI described above can be modified as follows. The time waveform of the object sound source corresponding to the section may be displayed between the predetermined keyframes KF. For example, as shown in FIG. 6, the time waveform 68 of the object sound source 2 corresponding to the section between the keyframe KF4 and the keyframe KF5 is superimposed on the locus 38 and displayed between the keyframes KF4 and KF5 on the object map. Will be done. With such a display, the user can recall the image of the sound reproduced between the predetermined keyframes KF. It may be possible to set the display / non-display of the display.
[0051]
(Second variant example)
　A sketch of the venue where the object sound sources 1 to 4 are actually played may be displayed on the object map. For example, as shown in FIG. 7, a sketch of the concert hall is displayed as display 71 as the background of the object map. With such a display, the user can arrange the object sound source while being aware of the actual reproduction environment, and can arrange the sound source according to the physical arrangement in the actual reproduction environment. For example, if the user wants to reproduce the sound (for example, the sound of running animals) passing through the passage of the concert hall from the front to the rear, a keyframe KF may be set in the passage of the concert hall on the object map. , You just have to set the trajectory.
[0052]
(Third variant example)
　As described above, when the reproduction environment is displayed on the object map, not only the physical arrangement but also the acoustic reproduction environment may be displayed on the object map. The acoustic reproduction environment is, for example, the reflectance coefficient of the ceiling, floor, wall, or the like of a concert hall. When the reflection coefficient display is turned on, as shown in FIG. 8, the display 72 regarding the distribution of the reflection coefficient in a predetermined concert hall is displayed. With such a display, authoring in consideration of the reflection coefficient becomes possible. For example, in order to prevent the sound from being reproduced around the portion having a large reflection coefficient, the user may set a trajectory so that the sound does not pass around the portion having a large reflection coefficient. In this way, the user can set the arrangement of the object sound source and the like with reference to the floor plan of the venue and the reflection coefficient. The floor plan data of the venue and the reflectance coefficient data are acquired from the outside of the personal computer 10. For example, it is possible to connect to the network by the communication unit 103 of the personal computer 10 and acquire the data of the sketch of the venue and the data showing the distribution of the reflection coefficient from the server device on the network.
[0053]
　In the above description, an example in which the locus 38 is automatically displayed by connecting the keyframes KF with a straight line has been described, but the present invention is not limited to this. For example, the user can draw an arbitrary locus using the input unit 105, and the locus corresponding to this input is displayed. The input unit 105 is assumed to be a stylus pen, a touch panel, or the like. FIG. 9 is a diagram showing a locus 75 which is an example of such a locus. For example, the user can freely display a moving image displayed on a monitor other than the display unit 104 (for example, a moving image reproduced in synchronization with an object sound source) on an input device such as a touch panel. You can enter the trajectory with your hand. This makes it possible to easily add a trajectory that matches the moving object displayed in the moving image.
[0054]
　A moving object in a moving image may be automatically recognized by image recognition, and a locus may be automatically generated and displayed according to the recognition result. For example, suppose that an object sound source is the sound of a cat running. As shown in the lower right of FIG. 10, in the moving image, it is assumed that the cat 81 runs on the road 82 from the upper left to the lower right. The moving image may be displayed together with the GUI, may be displayed on a display unit different from the display unit 104 on which the GUI is displayed, or may not be displayed.
[0055]
　The cat 81, which is a moving object (moving subject) in the moving image, is detected by a known subject detection process, and the movement of the cat 81 is detected by a known motion detection process. Such image processing is performed by, for example, the control unit 101. The control unit 101 automatically generates and displays a locus based on the recognition result. For example, the locus 83 is generated so that the sound of the cat running moves from the rear left (back left) to the front right with respect to the set listening position LP. Then, the generated locus 38 is displayed on the object map. As a result, the trajectory of the object sound source that matches the moving image can be faithfully and easily created.
[0056]

　The second embodiment is for a reproduction system that uses wave field synthesis to reproduce different contents for each area so as not to be mixed with the sound reproduced in the adjacent area. , This is an example to which this disclosure is applied. The same reference numerals are given to the same and homogeneous configurations as those in the first embodiment. Further, the matters described in the first embodiment can be applied to the second embodiment unless otherwise specified.
[0057]
　In this example, it is assumed that the voices related to the guidance played at the station or the airfield are played back simultaneously in three languages ​​(Japanese, English, and Chinese). FIG. 11 shows an example of the GUI according to the second embodiment. The array speaker 23 is displayed on the object map. From the array speaker 23, three audio reproduction areas (audio reproduction areas AR1, AR2, AR3) are displayed in a rectangular frame, for example, with respect to the audio reproduction direction. The voice reproduction area AR1 is, for example, an area where Japanese voice guidance can be heard. Further, the voice reproduction area AR2 is, for example, an area where English voice guidance can be heard. Further, the voice reproduction area AR3 is, for example, an area where Chinese voice guidance can be heard. The voice reproduction area AR1 or the like is a voice division area defined by dividing a range in which voice guidance can be heard. The user can change the size and shape of the audio reproduction area AR1 and the like by appropriately adjusting the division pattern. As a result, the user can visually understand the state of area division. In addition, the audio reproduction area AR1 or the like can be appropriately set according to the place where the sound is reproduced (for example, a tourist spot where many foreigners are present).
[0058]
　The set audio division area is supplied to the playback device 20 as metadata MD. The signal processing unit 22 of the reproduction device 20 performs predetermined signal processing (for example, the signal processing described in the above-mentioned patent document) according to the metadata MD. As a result, the sound is reproduced in the voice division area based on the metadata MD.
[0059]
　In addition, in order to make the audio reproduction areas AR1, AR2, and AR3 identifiable, the colors may be changed and displayed. Further, the divided area is not limited to three, and can be changed as appropriate.
[0060]
　The playback device 20 may read the area division information described in the metadata MD so that the state of the area division is shown in the real space. For example, the reproduction device 20 (which may be another device) has a projector provided on the ceiling. As shown in FIG. 12, the projector 85 reads the area division information and projects the colors corresponding to the audio reproduction areas AR1, AR2, and AR3 on the floor. By such processing, the voice reproduction area AR1 and the like set by the GUI are reflected in the real space, so that the state of the area division can be visually recognized in the real space.
[0061]
　Further, as shown in FIG. 13, an LED (Light Emitting Diode) array 86 is provided on the array speaker 23, and the emission color and lighting range of the LED (Light Emitting Diode) are appropriately set to reproduce sound in the real space. Area AR1 and the like may be reflected. For example, the front of the LED whose emission color is red (where the reference code 86a is attached) corresponds to the voice reproduction area AR1, and when the user is in front of the red LED, the user can hear the voice guidance in Japanese. It becomes. The Japanese voice component is reproduced at an appropriate level not only from the speaker unit corresponding to the red LED portion but also from the speaker unit corresponding to the LED portion of another color.
[0062]
Although
　the plurality of embodiments of the present disclosure have been specifically described above, the contents of the present disclosure are not limited to the above-described embodiments, and various types based on the technical idea of ​​the present disclosure are used. It can be transformed. Hereinafter, a modified example will be described.
[0063]
　In the GUI according to the above-described embodiment, it may be possible to assign a predetermined BGM (Background Music) sound source to any speaker unit of the array speaker 23. For example, as shown in FIG. 14, individual speaker units 23a constituting the array speaker 23 are displayed on the object map. The user can select the speaker unit 23a on which the BGM sound source is reproduced. The BGM sound source is reproduced at a constant level from the selected speaker unit 23a. With such a display, the user can visually understand from which speaker unit 23a in the array speaker 23 the BGM is output.
[0064]
　The display in the GUI described in the embodiment does not have to be all indispensable, and some of the above-mentioned displays may be omitted, or other displays may be added.
[0065]
　The display related to the GUI described in the first embodiment and the display related to the GUI described in the second embodiment may be switchable.
[0066]
　The display unit on which the GUI described above is displayed may be a display unit different from the display unit included in the personal computer 10. The same applies to the input unit. Further, in the above-described embodiment, there may be a plurality of array speakers, and the sound may be reproduced synchronously from each array speaker.
[0067]
　The configuration described in the above-described embodiment is merely an example, and the present invention is not limited thereto. Needless to say, the configuration may be added or deleted without departing from the gist of the present disclosure. The present disclosure can also be realized in any form such as an apparatus, a method, a program, and a system. The program can be stored in, for example, a memory included in the control unit or an appropriate recording medium.
[0068]
　The present disclosure may also adopt the following configuration.
(1) 　Display control
　having a display control unit that
displays the position of the array speaker, the time waveform corresponding to at least one sound source, and the locus indicating the change of the localization point of the sound source in a predetermined space. Device.
(2) 　The display control device according
　to
(1), wherein the display control unit displays a movement mark that moves on the locus with the lapse of the reproduction time of the sound source .
(3) 　The display control device
　according to
(2), wherein the display control unit changes the display mode of the movement mark according to the strength of the sound contained in the sound source .
(4) 　The display control device
　according to
(3), wherein the display control unit changes the size of the movement mark according to the strength of the sound contained in the sound source .
(5) The
　display control according
　to any one of (1) to (4) , wherein when a plurality of the sound sources are present, the display control unit displays the loci corresponding to the plurality of sound sources in an identifiable manner. Device.
(6) It
　is possible to set the color of the locus corresponding to each of the plurality of sound sources, the display / non-display of the locus corresponding to each of the plurality of sound sources, and the name for each of the plurality of sound sources.
　The display control device according to (5).
(7) 　The display control device according to any one of (1) to (6)
　, wherein the display control unit displays a venue where the sound source is reproduced
.
(8) 　The display control device according
　to
(7), wherein the display control unit displays a sound reflection coefficient at the venue .
(9) 　The display control device according to any one of (1) to (8)
　, wherein the display control unit displays an effective area from which the effect of signal processing on the sound source can be obtained
.
(10) 　The display control device according to any one of (1) to (9)
　, wherein the display control unit displays a listening area corresponding to a set listening position
.
(11) The
　display control unit displays a mark indicating a predetermined reproduction timing of the sound source in parallel with the time waveform, and indicates a reproduction portion of the sound reproduced at the reproduction timing in the space. Show
　display control device according to any one of (1) to (10).
(12) 　The display control device according to (11),
　wherein the locus is formed by connecting a plurality of marks set corresponding to the sound source
.
(13)
　The display control device according to (11) or (12), wherein the display control unit displays the time of the reproduction timing corresponding to the mark and the coordinates corresponding to the reproduction location.
(14) 　The display control device according to (12),
　wherein the movement pattern of the movement mark that moves between the marks can be set
.
(15) 　The display control device according to any one of (11) to (14 ),
　wherein a comment for the mark can be set
.
(16) The
　display control device according to
　any one of (1) to (15) , wherein the display control unit displays a locus set in response to an input to the input unit .
(17) 　The display control device according to any one of (1) to (15)
　, wherein the display control unit automatically displays the locus based on a recognition result for a moving object in a predetermined moving image
.
(18) 　The display control device according to any one of (1) to (17 ),
　wherein the display by the display control unit is a user interface for authoring
.
(19) 　The display control device according to any one of (1) to (18)
　, wherein the speaker array reproduces sound field-synthesized
.
(20)
　The display unit has a display control unit that displays the position of the array speaker and a plurality of reproduction areas corresponding to the plurality of sounds reproduced from the array speaker, and
　the size of the reproduction area can be changed.
　Display control device.
(21)
　the display control unit, the display unit, the position of the array speaker, at least a one time waveform corresponding to the sound source, and displays the trajectory that indicates the change in the localization position of the sound source in the predetermined space
　display control Method.
(22)
　the display control unit, the display unit, the position of the array speaker, at least a one time waveform corresponding to the sound source, and displays the trajectory that indicates the change in the localization position of the sound source in the predetermined space
　display control A program that causes a computer to perform a method.
Code description
[0069]
10 ... Personal computer, 20 ... Playback device, 22 ... Signal processing unit, 23 ... Array speaker, 30 ... Sound source data, 101 ... Control unit, 104 ... Display unit, 105 ・ ・ ・ Input unit
The scope of the claims
[Claim 1]
　A
　display control device having a display control unit that displays the position of an array speaker, a time waveform corresponding to at least one sound source, and a locus indicating a change in a localization point of the sound source in a predetermined space .
[Claim 2]

　The display control device according 　to claim 1, wherein the display control unit displays a movement mark that moves on the locus with the lapse of the reproduction time of the sound source .
[Claim 3]

　The display control device 　according to claim 2, wherein the display control unit changes the display mode of the movement mark according to the strength of the sound contained in the sound source .
[Claim 4]

　The display control device 　according to claim 3, wherein the display control unit changes the size of the movement mark according to the strength of the sound contained in the sound source .
[Claim 5]

　The display control device according 　to claim 1, wherein the display control unit displays, when a plurality of the sound sources are present, their respective loci corresponding to the plurality of sound sources in an identifiable manner .
[Claim 6]
　The
　fifth aspect of claim 5 , wherein the color of the locus corresponding to each of the plurality of sound sources, the display / non-display of the locus corresponding to each of the plurality of sound sources, and the name for each of the plurality of sound sources can be set. Display control device.
[Claim 7]

　The display control device according 　to claim 1, wherein the display control unit displays a venue where the sound source is reproduced .
[Claim 8]

　The display control device according 　to claim 7, wherein the display control unit displays a sound reflection coefficient at the venue .
[Claim 9]

　The display control device according 　to claim 1, wherein the display control unit displays an effective area from which the effect of signal processing on the sound source can be obtained .
[Claim 10]

　The display control device according 　to claim 1, wherein the display control unit displays a listening area corresponding to a set listening position .
[Claim 11]
　The display control unit displays a mark indicating a predetermined reproduction timing of the sound source in parallel with the time waveform, and displays a mark indicating a reproduction portion of the sound reproduced at the reproduction timing in the space.
　The display control device according to claim 1.
[Claim 12]

　The display control device according to claim 11, 　wherein the locus is formed by connecting a plurality of marks set corresponding to the sound source .
[Claim 13]
　The display control device according to claim 11, wherein the display control unit displays the time of the reproduction timing corresponding to the mark and the coordinates corresponding to the reproduction portion.
[Claim 14]

　The display control device according to claim 12, 　wherein the movement pattern of the movement mark that moves between the marks can be set .
[Claim 15]

　The display control device according to claim 11, 　wherein a comment for the mark can be set .
[Claim 16]
　The display control device according to
　claim 1, wherein the display control unit displays a locus set in response to an input to the input unit .
[Claim 17]

　The display control device according 　to claim 1 , wherein the display control unit automatically displays the locus based on a recognition result for a moving object in a predetermined moving image .
[Claim 18]

　The display control device according to claim 1, 　wherein the display by the display control unit is a user interface for authoring .
[Claim 19]

　The display control device according 　to claim 1, wherein the speaker array reproduces sound that has undergone wave field synthesis .
[Claim 20]
　The display unit has a display control unit that displays the position of the array speaker and a plurality of reproduction areas corresponding to the plurality of sounds reproduced from the array speaker, and
　the size of the reproduction area can be changed.
　Display control device.
[Claim 21]
　A display control method in which a display control unit displays a position of an array speaker, a time waveform corresponding to at least one sound source, and a locus indicating a change in a localization point of the sound source in a predetermined space on the display unit
　.
[Claim 22]
　The display control unit, the display unit, the position of the array speaker, and time waveforms corresponding to at least one sound source, and displays the trajectory that indicates the change in the localization position of the sound source in the predetermined space
　computer display control method Program to be executed by.