BR112015007649A2 - Codificador, decodificador e métodos para adaptação dinâmica compatível regressiva de resolução de tempo/frequência na codificação do objeto de áudio espacial. - Google Patents
Codificador, decodificador e métodos para adaptação dinâmica compatível regressiva de resolução de tempo/frequência na codificação do objeto de áudio espacial.Info
- Publication number
- BR112015007649A2 BR112015007649A2 BR112015007649A BR112015007649A BR112015007649A2 BR 112015007649 A2 BR112015007649 A2 BR 112015007649A2 BR 112015007649 A BR112015007649 A BR 112015007649A BR 112015007649 A BR112015007649 A BR 112015007649A BR 112015007649 A2 BR112015007649 A2 BR 112015007649A2
- Authority
- BR
- Brazil
- Prior art keywords
- decoder
- audio object
- encoder
- methods
- frequency resolution
- Prior art date
Links
- 230000006978 adaptation Effects 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 230000001373 regressive effect Effects 0.000 title 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
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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
- 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)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
Abstract
CODIFICADOR, DECODIFICADOR E MÉTODOS PARA ADAPTAÇÃO DINÂMICA COMPATÍVEL REGRESSIVA DE RESOLUÇÃO DE TEMPO/FREQUÊNCIA NA CODIFICAÇÃO DO OBJETO DE ÁUDIO ESPACIAL. Um decodificador para gerar um sinal de saída de áudio, compreendendo um ou mais canal(is) de saída de áudio a partir de um sinal de downmix, compreendendo uma pluralidade de amostras de downmix de domínio de tempo é fornecido. O sinal de downmix codifica dois ou mais sinais do objeto de áudio. O decodificador compreende um gerador de sequência de janela (134) para determinar uma pluralidade de janelas de análise, caracterizado por cada uma das janelas de análise compreender uma pluralidade de amostras de downmix de domínio de tempo do sinal de downmix. Cada janela de análise da pluralidade de janelas de análise tem um comprimento da janela indicando o número de amostras de downmix de domínio de tempo da referida janela de análise.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261710133P | 2012-10-05 | 2012-10-05 | |
US61/710,133 | 2012-10-05 | ||
EP13167481.4A EP2717265A1 (en) | 2012-10-05 | 2013-05-13 | Encoder, decoder and methods for backward compatible dynamic adaption of time/frequency resolution in spatial-audio-object-coding |
EP13167481.4 | 2013-05-13 | ||
PCT/EP2013/070551 WO2014053548A1 (en) | 2012-10-05 | 2013-10-02 | Encoder, decoder and methods for backward compatible dynamic adaption of time/frequency resolution in spatial-audio-object-coding |
Publications (2)
Publication Number | Publication Date |
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BR112015007649A2 true BR112015007649A2 (pt) | 2022-07-19 |
BR112015007649B1 BR112015007649B1 (pt) | 2023-04-25 |
Family
ID=48325509
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112015007649-1A BR112015007649B1 (pt) | 2012-10-05 | 2013-10-02 | Codificador, decodificador e métodos para adaptação dinâmica compatível regressiva de resolução de tempo/frequência na codificação do objeto de áudio espacial |
BR112015007650-5A BR112015007650B1 (pt) | 2012-10-05 | 2013-10-02 | Codificador , decodificador e métodos para transformação de zoom dependente de sinal na codificação do objeto de áudio espacial |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112015007650-5A BR112015007650B1 (pt) | 2012-10-05 | 2013-10-02 | Codificador , decodificador e métodos para transformação de zoom dependente de sinal na codificação do objeto de áudio espacial |
Country Status (17)
Country | Link |
---|---|
US (2) | US10152978B2 (pt) |
EP (4) | EP2717265A1 (pt) |
JP (2) | JP6185592B2 (pt) |
KR (2) | KR101685860B1 (pt) |
CN (2) | CN105190747B (pt) |
AR (2) | AR092929A1 (pt) |
AU (1) | AU2013326526B2 (pt) |
BR (2) | BR112015007649B1 (pt) |
CA (2) | CA2886999C (pt) |
ES (2) | ES2880883T3 (pt) |
HK (1) | HK1213361A1 (pt) |
MX (2) | MX351359B (pt) |
MY (1) | MY178697A (pt) |
RU (2) | RU2625939C2 (pt) |
SG (1) | SG11201502611TA (pt) |
TW (2) | TWI541795B (pt) |
WO (2) | WO2014053547A1 (pt) |
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EP2717265A1 (en) | 2012-10-05 | 2014-04-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Encoder, decoder and methods for backward compatible dynamic adaption of time/frequency resolution in spatial-audio-object-coding |
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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KR102243395B1 (ko) * | 2013-09-05 | 2021-04-22 | 한국전자통신연구원 | 오디오 부호화 장치 및 방법, 오디오 복호화 장치 및 방법, 오디오 재생 장치 |
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CN105096957B (zh) | 2014-04-29 | 2016-09-14 | 华为技术有限公司 | 处理信号的方法及设备 |
CN105336335B (zh) | 2014-07-25 | 2020-12-08 | 杜比实验室特许公司 | 利用子带对象概率估计的音频对象提取 |
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EP2717265A1 (en) | 2012-10-05 | 2014-04-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Encoder, decoder and methods for backward compatible dynamic adaption of time/frequency resolution in spatial-audio-object-coding |
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2013
- 2013-05-13 EP EP13167481.4A patent/EP2717265A1/en not_active Withdrawn
- 2013-05-13 EP EP13167487.1A patent/EP2717262A1/en not_active Withdrawn
- 2013-10-02 EP EP13776987.3A patent/EP2904610B1/en active Active
- 2013-10-02 BR BR112015007649-1A patent/BR112015007649B1/pt active IP Right Grant
- 2013-10-02 MX MX2015004019A patent/MX351359B/es active IP Right Grant
- 2013-10-02 JP JP2015535005A patent/JP6185592B2/ja active Active
- 2013-10-02 JP JP2015535006A patent/JP6268180B2/ja active Active
- 2013-10-02 ES ES13774118T patent/ES2880883T3/es active Active
- 2013-10-02 MY MYPI2015000807A patent/MY178697A/en unknown
- 2013-10-02 AU AU2013326526A patent/AU2013326526B2/en active Active
- 2013-10-02 CN CN201380052368.6A patent/CN105190747B/zh active Active
- 2013-10-02 EP EP13774118.7A patent/EP2904611B1/en active Active
- 2013-10-02 CA CA2886999A patent/CA2886999C/en active Active
- 2013-10-02 KR KR1020157011739A patent/KR101685860B1/ko active IP Right Grant
- 2013-10-02 CA CA2887028A patent/CA2887028C/en active Active
- 2013-10-02 WO PCT/EP2013/070550 patent/WO2014053547A1/en active Application Filing
- 2013-10-02 KR KR1020157011782A patent/KR101689489B1/ko active IP Right Grant
- 2013-10-02 RU RU2015116645A patent/RU2625939C2/ru active
- 2013-10-02 BR BR112015007650-5A patent/BR112015007650B1/pt active IP Right Grant
- 2013-10-02 ES ES13776987T patent/ES2873977T3/es active Active
- 2013-10-02 WO PCT/EP2013/070551 patent/WO2014053548A1/en active Application Filing
- 2013-10-02 SG SG11201502611TA patent/SG11201502611TA/en unknown
- 2013-10-02 RU RU2015116287A patent/RU2639658C2/ru active
- 2013-10-02 MX MX2015004018A patent/MX350691B/es active IP Right Grant
- 2013-10-02 CN CN201380052362.9A patent/CN104798131B/zh active Active
- 2013-10-04 TW TW102136014A patent/TWI541795B/zh active
- 2013-10-04 TW TW102136012A patent/TWI539444B/zh active
- 2013-10-07 AR ARP130103631A patent/AR092929A1/es active IP Right Grant
- 2013-10-07 AR ARP130103630A patent/AR092928A1/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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