BR112016029904A2 - método de codificação de áudio e codificador de áudio - Google Patents
método de codificação de áudio e codificador de áudioInfo
- Publication number
- BR112016029904A2 BR112016029904A2 BR112016029904A BR112016029904A BR112016029904A2 BR 112016029904 A2 BR112016029904 A2 BR 112016029904A2 BR 112016029904 A BR112016029904 A BR 112016029904A BR 112016029904 A BR112016029904 A BR 112016029904A BR 112016029904 A2 BR112016029904 A2 BR 112016029904A2
- Authority
- BR
- Brazil
- Prior art keywords
- coding
- audio frame
- current audio
- parameter
- spectral coefficients
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- 230000003595 spectral effect Effects 0.000 abstract 3
- 230000005284 excitation Effects 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
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
- G10L19/04—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
- G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
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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
- G10L19/0208—Subband vocoders
-
- 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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
-
- 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
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/06—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being correlation coefficients
-
- 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
- G10L19/0212—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 orthogonal transformation
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/21—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being power information
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)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
trata-se de um método de codificação de áudio e de um aparelho relacionado. o método de codificação de áudio inclui: realizar processamento de transformação de frequência de tempo em um sinal de domínio de tempo de um atual quadro de áudio, a fim de obter coeficientes espectrais do atual quadro de áudio (101); adquirir um parâmetro de codificação de referência do atual quadro de áudio (102); e caso o parâmetro de codificação de referência adquirido do atual quadro de áudio satisfaça uma primeira condição de parâmetro, codificar (103) os coeficientes espectrais do atual quadro de áudio com base em um algoritmo de excitação de transformada codificada ou, caso o parâmetro de codificação de referência adquirido do atual quadro de áudio satisfaça uma segunda condição de parâmetro, codificar (104) os coeficientes espectrais do atual quadro de áudio com base em um algoritmo de codificação de transformada de alta qualidade. o método de codificação de áudio e o aparelho relacionado auxiliam no aprimoramento da qualidade de codificação ou da eficiência de codificação da codificação de quadro de áudio.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410363905.5A CN104143335B (zh) | 2014-07-28 | 2014-07-28 | 音频编码方法及相关装置 |
CN201410363905.5 | 2014-07-28 | ||
PCT/CN2015/075645 WO2016015485A1 (zh) | 2014-07-28 | 2015-04-01 | 音频编码方法及相关装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
BR112016029904A2 true BR112016029904A2 (pt) | 2017-08-22 |
BR112016029904B1 BR112016029904B1 (pt) | 2023-04-18 |
Family
ID=51852493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112016029904-3A BR112016029904B1 (pt) | 2014-07-28 | 2015-04-01 | Método de codificação de áudio e codificador de áudio |
Country Status (15)
Country | Link |
---|---|
US (4) | US10056089B2 (pt) |
EP (2) | EP3790007B1 (pt) |
JP (2) | JP6538822B2 (pt) |
KR (2) | KR101947127B1 (pt) |
CN (2) | CN106448688B (pt) |
AU (2) | AU2015296447B2 (pt) |
BR (1) | BR112016029904B1 (pt) |
CA (3) | CA2951321C (pt) |
ES (2) | ES2938742T3 (pt) |
MX (1) | MX360606B (pt) |
MY (1) | MY174461A (pt) |
PL (1) | PL3790007T3 (pt) |
RU (1) | RU2670790C9 (pt) |
SG (2) | SG11201610047RA (pt) |
WO (1) | WO2016015485A1 (pt) |
Families Citing this family (5)
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CN106448688B (zh) | 2014-07-28 | 2019-11-05 | 华为技术有限公司 | 音频编码方法及相关装置 |
JP6501259B2 (ja) * | 2015-08-04 | 2019-04-17 | 本田技研工業株式会社 | 音声処理装置及び音声処理方法 |
US20220254331A1 (en) * | 2021-02-05 | 2022-08-11 | Cambium Assessment, Inc. | Neural network and method for machine learning assisted speech recognition |
CN112767956B (zh) * | 2021-04-09 | 2021-07-16 | 腾讯科技(深圳)有限公司 | 音频编码方法、装置、计算机设备及介质 |
EP4364137A1 (en) * | 2021-06-29 | 2024-05-08 | Telefonaktiebolaget LM Ericsson (publ) | Spectrum classifier for audio coding mode selection |
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CN106448688B (zh) | 2014-07-28 | 2019-11-05 | 华为技术有限公司 | 音频编码方法及相关装置 |
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2014
- 2014-07-28 CN CN201611123625.2A patent/CN106448688B/zh active Active
- 2014-07-28 CN CN201410363905.5A patent/CN104143335B/zh active Active
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2015
- 2015-04-01 KR KR1020167035938A patent/KR101947127B1/ko active IP Right Grant
- 2015-04-01 AU AU2015296447A patent/AU2015296447B2/en active Active
- 2015-04-01 KR KR1020197003520A patent/KR102022500B1/ko active IP Right Grant
- 2015-04-01 CA CA2951321A patent/CA2951321C/en active Active
- 2015-04-01 CA CA3064092A patent/CA3064092C/en active Active
- 2015-04-01 SG SG11201610047RA patent/SG11201610047RA/en unknown
- 2015-04-01 MY MYPI2016704584A patent/MY174461A/en unknown
- 2015-04-01 EP EP20159183.1A patent/EP3790007B1/en active Active
- 2015-04-01 PL PL20159183.1T patent/PL3790007T3/pl unknown
- 2015-04-01 ES ES20159183T patent/ES2938742T3/es active Active
- 2015-04-01 JP JP2017505140A patent/JP6538822B2/ja active Active
- 2015-04-01 MX MX2017001039A patent/MX360606B/es active IP Right Grant
- 2015-04-01 WO PCT/CN2015/075645 patent/WO2016015485A1/zh active Application Filing
- 2015-04-01 ES ES15826814T patent/ES2814154T3/es active Active
- 2015-04-01 RU RU2017101806A patent/RU2670790C9/ru active
- 2015-04-01 SG SG10201805102PA patent/SG10201805102PA/en unknown
- 2015-04-01 CA CA3058990A patent/CA3058990A1/en active Pending
- 2015-04-01 BR BR112016029904-3A patent/BR112016029904B1/pt active IP Right Grant
- 2015-04-01 EP EP15826814.4A patent/EP3157010B1/en active Active
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2017
- 2017-01-18 US US15/408,442 patent/US10056089B2/en active Active
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2018
- 2018-02-27 AU AU2018201411A patent/AU2018201411B2/en active Active
- 2018-05-23 US US15/986,839 patent/US10269366B2/en active Active
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2019
- 2019-01-31 US US16/263,837 patent/US10504534B2/en active Active
- 2019-06-06 JP JP2019106061A patent/JP6888051B2/ja active Active
- 2019-10-30 US US16/668,177 patent/US10706866B2/en active Active
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