BR112016029904A2 - método de codificação de áudio e codificador de áudio - Google Patents

método de codificação de áudio e codificador de áudio

Info

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
Application number
BR112016029904A
Other languages
English (en)
Other versions
BR112016029904B1 (pt
Inventor
Miao Lei
Liu Zexin
Original Assignee
Huawei Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of BR112016029904A2 publication Critical patent/BR112016029904A2/pt
Publication of BR112016029904B1 publication Critical patent/BR112016029904B1/pt

Links

Classifications

    • 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
    • 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
    • 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)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Stereophonic System (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.
BR112016029904-3A 2014-07-28 2015-04-01 Método de codificação de áudio e codificador de áudio BR112016029904B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201410363905.5 2014-07-28
CN201410363905.5A CN104143335B (zh) 2014-07-28 2014-07-28 音频编码方法及相关装置
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

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Country Status (15)

Country Link
US (4) US10056089B2 (pt)
EP (2) EP3790007B1 (pt)
JP (2) JP6538822B2 (pt)
KR (2) KR102022500B1 (pt)
CN (2) CN104143335B (pt)
AU (2) AU2015296447B2 (pt)
BR (1) BR112016029904B1 (pt)
CA (3) CA3064092C (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)

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RU2670790C9 (ru) 2018-11-23
US20180268832A1 (en) 2018-09-20
EP3790007A1 (en) 2021-03-10
US20200066290A1 (en) 2020-02-27
BR112016029904B1 (pt) 2023-04-18
KR101947127B1 (ko) 2019-02-12
CA3064092A1 (en) 2016-02-04
CA2951321A1 (en) 2016-02-04
CA2951321C (en) 2019-12-31
PL3790007T3 (pl) 2023-05-02
RU2017101806A (ru) 2018-08-30
WO2016015485A1 (zh) 2016-02-04
KR20170010822A (ko) 2017-02-01
RU2670790C2 (ru) 2018-10-25
CN106448688A (zh) 2017-02-22
EP3790007B1 (en) 2023-01-04
EP3157010A1 (en) 2017-04-19
CA3058990A1 (en) 2016-02-04
MY174461A (en) 2020-04-20
US10706866B2 (en) 2020-07-07
JP2019164379A (ja) 2019-09-26
JP6888051B2 (ja) 2021-06-16
US20190164562A1 (en) 2019-05-30
KR20190014603A (ko) 2019-02-12
CN104143335A (zh) 2014-11-12
ES2814154T3 (es) 2021-03-26
SG11201610047RA (en) 2017-01-27
JP6538822B2 (ja) 2019-07-03
US10504534B2 (en) 2019-12-10
AU2018201411A1 (en) 2018-03-22
KR102022500B1 (ko) 2019-11-25
SG10201805102PA (en) 2018-08-30
ES2938742T3 (es) 2023-04-14
AU2015296447A1 (en) 2017-01-05
CN104143335B (zh) 2017-02-01
RU2017101806A3 (pt) 2018-08-30
US20170125031A1 (en) 2017-05-04
CA3064092C (en) 2022-04-19
US10056089B2 (en) 2018-08-21
CN106448688B (zh) 2019-11-05
EP3157010B1 (en) 2020-06-10
JP2017522608A (ja) 2017-08-10
AU2015296447B2 (en) 2018-01-18
EP3157010A4 (en) 2017-10-25
AU2018201411B2 (en) 2019-08-22
MX360606B (es) 2018-11-09
US10269366B2 (en) 2019-04-23
MX2017001039A (es) 2017-05-04

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