MX351359B - Codificador, decodificador y métodos para la transformación de amplicación por acercamiento dependiente de señales en la codificación espacial de objetos de audio. - Google Patents
Codificador, decodificador y métodos para la transformación de amplicación por acercamiento dependiente de señales en la codificación espacial de objetos de audio.Info
- Publication number
- MX351359B MX351359B MX2015004019A MX2015004019A MX351359B MX 351359 B MX351359 B MX 351359B MX 2015004019 A MX2015004019 A MX 2015004019A MX 2015004019 A MX2015004019 A MX 2015004019A MX 351359 B MX351359 B MX 351359B
- Authority
- MX
- Mexico
- Prior art keywords
- signal
- downmix
- audio object
- decoder
- transformed
- Prior art date
Links
- 230000001419 dependent effect Effects 0.000 title 1
- 230000004913 activation Effects 0.000 abstract 8
- 230000001131 transforming effect Effects 0.000 abstract 2
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
- G10L19/0208—Subband vocoders
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
- G10L19/025—Detection of transients or attacks for time/frequency resolution switching
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
Abstract
Se provee un decodificador para generar una señal de salida de audio que comprende uno o más canales de salida de audio a partir de una señal de downmix que comprende una pluralidad de muestras de downmix en el dominio del tiempo. La señal de downmix codifica dos o más señales de objeto de audio. El decodificador comprende un generador de secuencias de ventana (134) para determinar una pluralidad de ventanas de análisis, en donde cada una de las ventanas de análisis comprende una pluralidad de muestras de downmix en el dominio del tiempo de la señal de downmix. Cada ventana de análisis de la pluralidad de ventanas de análisis tiene una longitud de ventana que indica la cantidad de las muestras de downmix en el dominio del tiempo de dicha ventana de análisis. El generador de secuencias de ventana (134) está configurado para determinar la pluralidad de ventanas de análisis de manera tal que la longitud de ventana de cada una de las ventanas de análisis depende de una propiedad de señal de por lo menos una de las dos o más señales de objeto de audio. Además, el decodificador comprende un módulo de análisis t/f (135) para transformar la pluralidad de muestras de downmix en el dominio del tiempo de cada ventana de análisis de la pluralidad de ventanas de análisis desde un dominio del tiempo a un dominio de tiempo-frecuencia en función de la longitud de ventana de dicha ventana de análisis, para obtener un downmix transformado. Por otra parte, el decodificador comprende una unidad de desmezclado (136) para desmezclar el downmix transformado en base a información paramétrica lateral sobre las dos o más señales de objeto de audio para obtener la señal de salida de audio. Además, se provee un codificador.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261710133P | 2012-10-05 | 2012-10-05 | |
EP13167487.1A EP2717262A1 (en) | 2012-10-05 | 2013-05-13 | Encoder, decoder and methods for signal-dependent zoom-transform in spatial audio object coding |
PCT/EP2013/070550 WO2014053547A1 (en) | 2012-10-05 | 2013-10-02 | Encoder, decoder and methods for signal-dependent zoom-transform in spatial audio object coding |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2015004019A MX2015004019A (es) | 2015-07-06 |
MX351359B true MX351359B (es) | 2017-10-11 |
Family
ID=48325509
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2015004018A MX350691B (es) | 2012-10-05 | 2013-10-02 | Codificador, decodificador y métodos para la adaptación dinámica inversa compatible de la resolución en tiempo/frecuencia en la codificación espacial de objetos de audio. |
MX2015004019A MX351359B (es) | 2012-10-05 | 2013-10-02 | Codificador, decodificador y métodos para la transformación de amplicación por acercamiento dependiente de señales en la codificación espacial de objetos de audio. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2015004018A MX350691B (es) | 2012-10-05 | 2013-10-02 | Codificador, decodificador y métodos para la adaptación dinámica inversa compatible de la resolución en tiempo/frecuencia en la codificación espacial de objetos de audio. |
Country Status (17)
Country | Link |
---|---|
US (2) | US10152978B2 (es) |
EP (4) | EP2717262A1 (es) |
JP (2) | JP6185592B2 (es) |
KR (2) | KR101685860B1 (es) |
CN (2) | CN104798131B (es) |
AR (2) | AR092928A1 (es) |
AU (1) | AU2013326526B2 (es) |
BR (2) | BR112015007649B1 (es) |
CA (2) | CA2887028C (es) |
ES (2) | ES2873977T3 (es) |
HK (1) | HK1213361A1 (es) |
MX (2) | MX350691B (es) |
MY (1) | MY178697A (es) |
RU (2) | RU2625939C2 (es) |
SG (1) | SG11201502611TA (es) |
TW (2) | TWI539444B (es) |
WO (2) | WO2014053548A1 (es) |
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EP2804176A1 (en) * | 2013-05-13 | 2014-11-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio object separation from mixture signal using object-specific time/frequency resolutions |
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CN106409303B (zh) | 2014-04-29 | 2019-09-20 | 华为技术有限公司 | 处理信号的方法及设备 |
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EP2717262A1 (en) | 2012-10-05 | 2014-04-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Encoder, decoder and methods for signal-dependent zoom-transform in spatial audio object coding |
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2013
- 2013-05-13 EP EP13167487.1A patent/EP2717262A1/en not_active Withdrawn
- 2013-05-13 EP EP13167481.4A patent/EP2717265A1/en not_active Withdrawn
- 2013-10-02 BR BR112015007649-1A patent/BR112015007649B1/pt active IP Right Grant
- 2013-10-02 ES ES13776987T patent/ES2873977T3/es active Active
- 2013-10-02 KR KR1020157011739A patent/KR101685860B1/ko active IP Right Grant
- 2013-10-02 RU RU2015116645A patent/RU2625939C2/ru active
- 2013-10-02 CA CA2887028A patent/CA2887028C/en active Active
- 2013-10-02 EP EP13774118.7A patent/EP2904611B1/en active Active
- 2013-10-02 WO PCT/EP2013/070551 patent/WO2014053548A1/en active Application Filing
- 2013-10-02 CN CN201380052362.9A patent/CN104798131B/zh active Active
- 2013-10-02 MX MX2015004018A patent/MX350691B/es active IP Right Grant
- 2013-10-02 EP EP13776987.3A patent/EP2904610B1/en active Active
- 2013-10-02 JP JP2015535005A patent/JP6185592B2/ja active Active
- 2013-10-02 BR BR112015007650-5A patent/BR112015007650B1/pt active IP Right Grant
- 2013-10-02 MX MX2015004019A patent/MX351359B/es active IP Right Grant
- 2013-10-02 CN CN201380052368.6A patent/CN105190747B/zh active Active
- 2013-10-02 AU AU2013326526A patent/AU2013326526B2/en active Active
- 2013-10-02 WO PCT/EP2013/070550 patent/WO2014053547A1/en active Application Filing
- 2013-10-02 RU RU2015116287A patent/RU2639658C2/ru active
- 2013-10-02 JP JP2015535006A patent/JP6268180B2/ja active Active
- 2013-10-02 SG SG11201502611TA patent/SG11201502611TA/en unknown
- 2013-10-02 CA CA2886999A patent/CA2886999C/en active Active
- 2013-10-02 KR KR1020157011782A patent/KR101689489B1/ko active IP Right Grant
- 2013-10-02 MY MYPI2015000807A patent/MY178697A/en unknown
- 2013-10-02 ES ES13774118T patent/ES2880883T3/es active Active
- 2013-10-04 TW TW102136012A patent/TWI539444B/zh active
- 2013-10-04 TW TW102136014A patent/TWI541795B/zh active
- 2013-10-07 AR ARP130103630A patent/AR092928A1/es active IP Right Grant
- 2013-10-07 AR ARP130103631A patent/AR092929A1/es active IP Right Grant
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2015
- 2015-03-27 US US14/671,928 patent/US10152978B2/en active Active
- 2015-04-03 US US14/678,667 patent/US9734833B2/en active Active
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2016
- 2016-02-05 HK HK16101374.6A patent/HK1213361A1/zh unknown
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