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Apparatus And Method For Extracting An Ambient Signal In An Apparatus And Method For Obtaining Weighting Coefficients For Extracting An Ambient Signal And Computer Program
Abstract: An apparatus for extracting an ambient signal from an input audio signal comprises a gain-value determinator configured to determine a sequence of time-varying ambient signal gain values for a given frequency band of the time-frequency distribution of the input audio signal in dependence on the input audio signal. The apparatus comprises a weighter configured to weight one of the sub-band signals representing the given frequency band of the time- frequency-domain representation with the time-varying gain values, to obtain a weighted sub-band signal. The gain- value determinator is configured to obtain one or more quantitative feature-values describing one or more features of the input audio signal and to provide the gain-value as a function of the one or more quantitative feature values such that the gain values are quantitatively dependent on the quantitative values. The gain value determinator is configured to determine the gain values such that ambience components are emphasized over non-ambience components in the weighted sub-band signal.
Notices, Deadlines & Correspondence
Patent Information
Applicants
FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Inventors
1. CHRISTIAN UHLE
2. JUERGEN HERRE
3. STEFAN GEYERSBERGER
4. FALKO RIDDERBUSCH
5. ANDREAS WALTER
6. OLIVER MOSER
Specification
ABSTRACT
TITLE:""APPARATUS AND METHOD FOR EXTRACTING AN AMBIENT
SIGNAL IN AN APPARATUS AND METHOD FOR OBTAINING WEIGHTING
COEFFICIENTS FOR EXTRACTING AN AMBIENT SIGNAL AND COMPUTER
PROGRAM"
An apparatus for extracting an ambient signal from an input audio signal
comprises a gain-value determinator configured to determine a sequence of
time-varying ambient signal gain values for a given frequency band of the time-
frequency distribution of the input audio signal in dependence on the input audio
signal The apparatus comprises a weighter configured to weight one of the sub-
band signals representing the given frequency band of the time-frequency-
domain representation with the time-varying gain values, to obtain a weighted
sub-band signal The gain-value determinator is configured to obtain one or more
quantitative feature-values describing one or more features of the input audio
signal and to provide the gain-value as a function of the one or more quantitative
feature values such that the gain values are quantitatively dependent on the
quantitative values The gain value determinator is configured to determine the
gain values such that ambience components are emphasized over non-ambience
components in the weighted sub-band signal
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 1115-KOLNP-2010-RELEVANT DOCUMENTS [01-09-2023(online)].pdf | 2023-09-01 |
| 1 | abstract-1115-kolnp-2010.jpg | 2011-10-07 |
| 2 | 1115-KOLNP-2010-RELEVANT DOCUMENTS [07-09-2022(online)].pdf | 2022-09-07 |
| 2 | 1115-kolnp-2010-specification.pdf | 2011-10-07 |
| 3 | 1115-KOLNP-2010-RELEVANT DOCUMENTS [26-09-2021(online)].pdf | 2021-09-26 |
| 3 | 1115-kolnp-2010-pct request form.pdf | 2011-10-07 |
| 4 | 1115-KOLNP-2010-RELEVANT DOCUMENTS [02-03-2020(online)].pdf | 2020-03-02 |
| 4 | 1115-kolnp-2010-pct priority document notification.pdf | 2011-10-07 |
| 5 | 1115-KOLNP-2010-RELEVANT DOCUMENTS [04-02-2019(online)].pdf | 2019-02-04 |
| 5 | 1115-kolnp-2010-others.pdf | 2011-10-07 |
| 6 | 1115-KOLNP-2010-RELEVANT DOCUMENTS [21-02-2018(online)].pdf | 2018-02-21 |
| 6 | 1115-kolnp-2010-international search report.pdf | 2011-10-07 |
| 7 | Form 27 [18-03-2017(online)].pdf | 2017-03-18 |
| 7 | 1115-kolnp-2010-international publication.pdf | 2011-10-07 |
| 8 | 1115-KOLNP-2010_EXAMREPORT.pdf | 2016-06-30 |
| 8 | 1115-kolnp-2010-international preliminary examination report.pdf | 2011-10-07 |
| 9 | 1115-KOLNP-2010-CANCELLED PAGES.pdf | 2016-02-05 |
| 9 | 1115-kolnp-2010-form 5.pdf | 2011-10-07 |
| 10 | 1115-kolnp-2010-correspondence.pdf | 2016-02-05 |
| 10 | 1115-kolnp-2010-form 3.pdf | 2011-10-07 |
| 11 | 1115-KOLNP-2010-EXAMINATION REPORT.pdf | 2016-02-05 |
| 11 | 1115-KOLNP-2010-FORM 3 1.1.pdf | 2011-10-07 |
| 12 | 1115-KOLNP-2010-FORM 13.pdf | 2016-02-05 |
| 12 | 1115-kolnp-2010-form 2.pdf | 2011-10-07 |
| 13 | 1115-kolnp-2010-form 1.pdf | 2011-10-07 |
| 13 | 1115-KOLNP-2010-FORM 18.pdf | 2016-02-05 |
| 14 | 1115-kolnp-2010-drawings.pdf | 2011-10-07 |
| 14 | 1115-KOLNP-2010-GRANTED-ABSTRACT.pdf | 2016-02-05 |
| 15 | 1115-kolnp-2010-description (complete).pdf | 2011-10-07 |
| 15 | 1115-KOLNP-2010-GRANTED-CLAIMS.pdf | 2016-02-05 |
| 16 | 1115-KOLNP-2010-CORRESPONDENCE 1.2.pdf | 2011-10-07 |
| 16 | 1115-KOLNP-2010-GRANTED-DESCRIPTION (COMPLETE).pdf | 2016-02-05 |
| 17 | 1115-KOLNP-2010-GRANTED-DRAWINGS.pdf | 2016-02-05 |
| 17 | 1115-KOLNP-2010-CORRESPONDENCE 1.1.pdf | 2011-10-07 |
| 18 | 1115-kolnp-2010-claims.pdf | 2011-10-07 |
| 18 | 1115-KOLNP-2010-GRANTED-FORM 1.pdf | 2016-02-05 |
| 19 | 1115-KOLNP-2010-ASSIGNMENT.pdf | 2011-10-07 |
| 19 | 1115-KOLNP-2010-GRANTED-FORM 2.pdf | 2016-02-05 |
| 20 | 1115-kolnp-2010-abstract.pdf | 2011-10-07 |
| 20 | 1115-KOLNP-2010-GRANTED-FORM 3.pdf | 2016-02-05 |
| 21 | 1115-KOLNP-2010-(31-07-2015)-OTHERS.pdf | 2015-07-31 |
| 21 | 1115-KOLNP-2010-GRANTED-FORM 5.pdf | 2016-02-05 |
| 22 | 1115-KOLNP-2010-(31-07-2015)-CORRESPONDENCE.pdf | 2015-07-31 |
| 22 | 1115-KOLNP-2010-GRANTED-LETTER PATENT.pdf | 2016-02-05 |
| 23 | 1115-KOLNP-2010-(12-01-2016)-PETITION UNDER RULE 137.pdf | 2016-01-12 |
| 23 | 1115-KOLNP-2010-GRANTED-SPECIFICATION-COMPLETE.pdf | 2016-02-05 |
| 24 | 1115-KOLNP-2010-INTERNATIONAL SEARCH REPORT & OTHERS.pdf | 2016-02-05 |
| 24 | 1115-KOLNP-2010-(12-01-2016)-OTHERS.pdf | 2016-01-12 |
| 25 | 1115-KOLNP-2010-(12-01-2016)-FORM-2.pdf | 2016-01-12 |
| 25 | 1115-KOLNP-2010-PETITION UNDER RULE 137.pdf | 2016-02-05 |
| 26 | 1115-KOLNP-2010-(12-01-2016)-FORM-13.pdf | 2016-01-12 |
| 26 | 1115-KOLNP-2010-REPLY TO EXAMINATION REPORT.pdf | 2016-02-05 |
| 27 | 1115-KOLNP-2010-(12-01-2016)-ABSTRACT.pdf | 2016-01-12 |
| 27 | 1115-KOLNP-2010-(12-01-2016)-FORM-1.pdf | 2016-01-12 |
| 28 | 1115-KOLNP-2010-(12-01-2016)-ANNEXURE TO FORM 3.pdf | 2016-01-12 |
| 28 | 1115-KOLNP-2010-(12-01-2016)-DRAWINGS.pdf | 2016-01-12 |
| 29 | 1115-KOLNP-2010-(12-01-2016)-CLAIMS.pdf | 2016-01-12 |
| 29 | 1115-KOLNP-2010-(12-01-2016)-DESCRIPTION (COMPLETE).pdf | 2016-01-12 |
| 30 | 1115-KOLNP-2010-(12-01-2016)-CORRESPONDENCE..pdf | 2016-01-12 |
| 30 | 1115-KOLNP-2010-(12-01-2016)-CORRESPONDENCE.pdf | 2016-01-12 |
| 31 | 1115-KOLNP-2010-(12-01-2016)-CORRESPONDENCE..pdf | 2016-01-12 |
| 31 | 1115-KOLNP-2010-(12-01-2016)-CORRESPONDENCE.pdf | 2016-01-12 |
| 32 | 1115-KOLNP-2010-(12-01-2016)-CLAIMS.pdf | 2016-01-12 |
| 32 | 1115-KOLNP-2010-(12-01-2016)-DESCRIPTION (COMPLETE).pdf | 2016-01-12 |
| 33 | 1115-KOLNP-2010-(12-01-2016)-ANNEXURE TO FORM 3.pdf | 2016-01-12 |
| 33 | 1115-KOLNP-2010-(12-01-2016)-DRAWINGS.pdf | 2016-01-12 |
| 34 | 1115-KOLNP-2010-(12-01-2016)-ABSTRACT.pdf | 2016-01-12 |
| 34 | 1115-KOLNP-2010-(12-01-2016)-FORM-1.pdf | 2016-01-12 |
| 35 | 1115-KOLNP-2010-(12-01-2016)-FORM-13.pdf | 2016-01-12 |
| 35 | 1115-KOLNP-2010-REPLY TO EXAMINATION REPORT.pdf | 2016-02-05 |
| 36 | 1115-KOLNP-2010-PETITION UNDER RULE 137.pdf | 2016-02-05 |
| 36 | 1115-KOLNP-2010-(12-01-2016)-FORM-2.pdf | 2016-01-12 |
| 37 | 1115-KOLNP-2010-(12-01-2016)-OTHERS.pdf | 2016-01-12 |
| 37 | 1115-KOLNP-2010-INTERNATIONAL SEARCH REPORT & OTHERS.pdf | 2016-02-05 |
| 38 | 1115-KOLNP-2010-(12-01-2016)-PETITION UNDER RULE 137.pdf | 2016-01-12 |
| 38 | 1115-KOLNP-2010-GRANTED-SPECIFICATION-COMPLETE.pdf | 2016-02-05 |
| 39 | 1115-KOLNP-2010-(31-07-2015)-CORRESPONDENCE.pdf | 2015-07-31 |
| 39 | 1115-KOLNP-2010-GRANTED-LETTER PATENT.pdf | 2016-02-05 |
| 40 | 1115-KOLNP-2010-(31-07-2015)-OTHERS.pdf | 2015-07-31 |
| 40 | 1115-KOLNP-2010-GRANTED-FORM 5.pdf | 2016-02-05 |
| 41 | 1115-kolnp-2010-abstract.pdf | 2011-10-07 |
| 41 | 1115-KOLNP-2010-GRANTED-FORM 3.pdf | 2016-02-05 |
| 42 | 1115-KOLNP-2010-ASSIGNMENT.pdf | 2011-10-07 |
| 42 | 1115-KOLNP-2010-GRANTED-FORM 2.pdf | 2016-02-05 |
| 43 | 1115-kolnp-2010-claims.pdf | 2011-10-07 |
| 43 | 1115-KOLNP-2010-GRANTED-FORM 1.pdf | 2016-02-05 |
| 44 | 1115-KOLNP-2010-CORRESPONDENCE 1.1.pdf | 2011-10-07 |
| 44 | 1115-KOLNP-2010-GRANTED-DRAWINGS.pdf | 2016-02-05 |
| 45 | 1115-KOLNP-2010-CORRESPONDENCE 1.2.pdf | 2011-10-07 |
| 45 | 1115-KOLNP-2010-GRANTED-DESCRIPTION (COMPLETE).pdf | 2016-02-05 |
| 46 | 1115-KOLNP-2010-GRANTED-CLAIMS.pdf | 2016-02-05 |
| 46 | 1115-kolnp-2010-description (complete).pdf | 2011-10-07 |
| 47 | 1115-kolnp-2010-drawings.pdf | 2011-10-07 |
| 47 | 1115-KOLNP-2010-GRANTED-ABSTRACT.pdf | 2016-02-05 |
| 48 | 1115-kolnp-2010-form 1.pdf | 2011-10-07 |
| 48 | 1115-KOLNP-2010-FORM 18.pdf | 2016-02-05 |
| 49 | 1115-KOLNP-2010-FORM 13.pdf | 2016-02-05 |
| 49 | 1115-kolnp-2010-form 2.pdf | 2011-10-07 |
| 50 | 1115-KOLNP-2010-EXAMINATION REPORT.pdf | 2016-02-05 |
| 50 | 1115-KOLNP-2010-FORM 3 1.1.pdf | 2011-10-07 |
| 51 | 1115-kolnp-2010-correspondence.pdf | 2016-02-05 |
| 51 | 1115-kolnp-2010-form 3.pdf | 2011-10-07 |
| 52 | 1115-KOLNP-2010-CANCELLED PAGES.pdf | 2016-02-05 |
| 52 | 1115-kolnp-2010-form 5.pdf | 2011-10-07 |
| 53 | 1115-kolnp-2010-international preliminary examination report.pdf | 2011-10-07 |
| 53 | 1115-KOLNP-2010_EXAMREPORT.pdf | 2016-06-30 |
| 54 | 1115-kolnp-2010-international publication.pdf | 2011-10-07 |
| 54 | Form 27 [18-03-2017(online)].pdf | 2017-03-18 |
| 55 | 1115-KOLNP-2010-RELEVANT DOCUMENTS [21-02-2018(online)].pdf | 2018-02-21 |
| 55 | 1115-kolnp-2010-international search report.pdf | 2011-10-07 |
| 56 | 1115-KOLNP-2010-RELEVANT DOCUMENTS [04-02-2019(online)].pdf | 2019-02-04 |
| 56 | 1115-kolnp-2010-others.pdf | 2011-10-07 |
| 57 | 1115-KOLNP-2010-RELEVANT DOCUMENTS [02-03-2020(online)].pdf | 2020-03-02 |
| 57 | 1115-kolnp-2010-pct priority document notification.pdf | 2011-10-07 |
| 58 | 1115-KOLNP-2010-RELEVANT DOCUMENTS [26-09-2021(online)].pdf | 2021-09-26 |
| 58 | 1115-kolnp-2010-pct request form.pdf | 2011-10-07 |
| 59 | 1115-KOLNP-2010-RELEVANT DOCUMENTS [07-09-2022(online)].pdf | 2022-09-07 |
| 59 | 1115-kolnp-2010-specification.pdf | 2011-10-07 |
| 60 | 1115-KOLNP-2010-RELEVANT DOCUMENTS [01-09-2023(online)].pdf | 2023-09-01 |
| 60 | abstract-1115-kolnp-2010.jpg | 2011-10-07 |