BRPI1016262A2 - método de codificação de sinal de áudio, método de decodificação de sinal de áudio, dispositivo de codificação, dispositivo de decodificação, sistema de processamento de sinal de áudio, programa de codificação de sinal de áudio, e programa de decodificação de sinal de áudio - Google Patents

método de codificação de sinal de áudio, método de decodificação de sinal de áudio, dispositivo de codificação, dispositivo de decodificação, sistema de processamento de sinal de áudio, programa de codificação de sinal de áudio, e programa de decodificação de sinal de áudio

Info

Publication number
BRPI1016262A2
BRPI1016262A2 BRPI1016262A BRPI1016262A BRPI1016262A2 BR PI1016262 A2 BRPI1016262 A2 BR PI1016262A2 BR PI1016262 A BRPI1016262 A BR PI1016262A BR PI1016262 A BRPI1016262 A BR PI1016262A BR PI1016262 A2 BRPI1016262 A2 BR PI1016262A2
Authority
BR
Brazil
Prior art keywords
audio signal
encoding
decoding
program
processing system
Prior art date
Application number
BRPI1016262A
Other languages
English (en)
Inventor
Kei Kikuiri
Kosuke Tsujino
Nobuhiko Naka
Original Assignee
Ntt Docomo Inc
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 Ntt Docomo Inc filed Critical Ntt Docomo Inc
Priority to BR122013014739-0A priority Critical patent/BR122013014739B1/pt
Priority to BR122013014741-1A priority patent/BR122013014741B1/pt
Publication of BRPI1016262A2 publication Critical patent/BRPI1016262A2/pt
Publication of BRPI1016262B1 publication Critical patent/BRPI1016262B1/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
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • G10L19/002—Dynamic bit allocation
    • 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
    • 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
    • G10L19/04—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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
BRPI1016262-3A 2009-03-06 2010-03-03 método para codificar um sinal de áudio, método para decodificar um sinal de áudio codificado, dispositivo de codificação, dispositivo de decodificação e sistema de processamento de sinal de áudio BRPI1016262B1 (pt)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR122013014739-0A BR122013014739B1 (pt) 2009-03-06 2010-03-03 método de codificação de sinal de áudio, método de decodificação de sinal de áudio, dispositivo de codificação, dispositivo de decodificação e sistema de processamento de sinal de áudio
BR122013014741-1A BR122013014741B1 (pt) 2009-03-06 2010-03-03 método de codificação de sinal de áudio, método de decodificação de sinal de áudio, dispositivo de codificação, dispositivo de decodificação e sistema de processamento de sinal de áudio

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2009053693A JP4977157B2 (ja) 2009-03-06 2009-03-06 音信号符号化方法、音信号復号方法、符号化装置、復号装置、音信号処理システム、音信号符号化プログラム、及び、音信号復号プログラム
JP2009-053693 2009-03-06
PCT/JP2010/053454 WO2010101190A1 (ja) 2009-03-06 2010-03-03 音信号符号化方法、音信号復号方法、符号化装置、復号装置、音信号処理システム、音信号符号化プログラム、及び、音信号復号プログラム

Publications (2)

Publication Number Publication Date
BRPI1016262A2 true BRPI1016262A2 (pt) 2016-05-03
BRPI1016262B1 BRPI1016262B1 (pt) 2020-11-10

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BR122013014739-0A BR122013014739B1 (pt) 2009-03-06 2010-03-03 método de codificação de sinal de áudio, método de decodificação de sinal de áudio, dispositivo de codificação, dispositivo de decodificação e sistema de processamento de sinal de áudio
BR122013014741-1A BR122013014741B1 (pt) 2009-03-06 2010-03-03 método de codificação de sinal de áudio, método de decodificação de sinal de áudio, dispositivo de codificação, dispositivo de decodificação e sistema de processamento de sinal de áudio
BRPI1016262-3A BRPI1016262B1 (pt) 2009-03-06 2010-03-03 método para codificar um sinal de áudio, método para decodificar um sinal de áudio codificado, dispositivo de codificação, dispositivo de decodificação e sistema de processamento de sinal de áudio

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BR122013014739-0A BR122013014739B1 (pt) 2009-03-06 2010-03-03 método de codificação de sinal de áudio, método de decodificação de sinal de áudio, dispositivo de codificação, dispositivo de decodificação e sistema de processamento de sinal de áudio
BR122013014741-1A BR122013014741B1 (pt) 2009-03-06 2010-03-03 método de codificação de sinal de áudio, método de decodificação de sinal de áudio, dispositivo de codificação, dispositivo de decodificação e sistema de processamento de sinal de áudio

Country Status (22)

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US (3) US8751245B2 (pt)
EP (3) EP2511907A1 (pt)
JP (1) JP4977157B2 (pt)
KR (3) KR101256542B1 (pt)
CN (3) CN102737642B (pt)
AU (1) AU2010219643C1 (pt)
BR (3) BR122013014739B1 (pt)
CA (1) CA2754404C (pt)
CY (1) CY1114649T1 (pt)
DK (1) DK2405426T3 (pt)
ES (1) ES2434125T3 (pt)
HR (1) HRP20131056T1 (pt)
MX (1) MX2011009333A (pt)
PH (2) PH12012501447B1 (pt)
PL (1) PL2405426T3 (pt)
PT (1) PT2405426E (pt)
RU (3) RU2482554C1 (pt)
SG (1) SG174241A1 (pt)
SI (1) SI2405426T1 (pt)
SM (1) SMT201400025B (pt)
TW (3) TWI385648B (pt)
WO (1) WO2010101190A1 (pt)

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CN104485112B (zh) * 2014-12-08 2017-12-08 福建联迪商用设备有限公司 一种基于音频通讯中的音频解码方法及其装置
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CN109215667B (zh) * 2017-06-29 2020-12-22 华为技术有限公司 时延估计方法及装置
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Also Published As

Publication number Publication date
EP2405426B1 (en) 2013-08-28
BR122013014739B1 (pt) 2020-10-13
US8751245B2 (en) 2014-06-10
ES2434125T3 (es) 2013-12-13
CN102737641A (zh) 2012-10-17
PH12012501447A1 (en) 2014-08-27
PH12012501446B1 (en) 2015-07-20
EP2511906A1 (en) 2012-10-17
AU2010219643B2 (en) 2012-10-25
KR20120084339A (ko) 2012-07-27
RU2482554C1 (ru) 2013-05-20
KR101175553B1 (ko) 2012-08-23
EP2511907A1 (en) 2012-10-17
CA2754404A1 (en) 2010-09-10
KR20110124279A (ko) 2011-11-16
CN102341851B (zh) 2013-09-04
RU2493620C1 (ru) 2013-09-20
EP2405426A4 (en) 2012-10-17
DK2405426T3 (da) 2013-11-11
BR122013014741A2 (pt) 2016-05-24
KR101256542B1 (ko) 2013-04-19
SI2405426T1 (sl) 2013-12-31
TWI390504B (zh) 2013-03-21
JP4977157B2 (ja) 2012-07-18
PT2405426E (pt) 2013-10-17
TW201246191A (en) 2012-11-16
HRP20131056T1 (hr) 2013-12-06
TW201126513A (en) 2011-08-01
KR20120084338A (ko) 2012-07-27
CN102341851A (zh) 2012-02-01
US20110320212A1 (en) 2011-12-29
CA2754404C (en) 2016-04-26
WO2010101190A1 (ja) 2010-09-10
BR122013014741B1 (pt) 2020-10-27
US9214161B2 (en) 2015-12-15
MX2011009333A (es) 2011-09-29
PH12012501447B1 (en) 2014-08-27
TW201246192A (en) 2012-11-16
BR122013014739A2 (pt) 2016-05-24
AU2010219643A1 (en) 2011-10-06
PL2405426T3 (pl) 2014-01-31
CN102737642B (zh) 2014-07-30
TWI385648B (zh) 2013-02-11
TWI385649B (zh) 2013-02-11
BRPI1016262B1 (pt) 2020-11-10
RU2011140533A (ru) 2013-05-10
SMT201400025B (it) 2014-05-07
KR101175555B1 (ko) 2012-08-21
AU2010219643C1 (en) 2013-03-14
CN102737641B (zh) 2014-07-02
JP2010210680A (ja) 2010-09-24
CN102737642A (zh) 2012-10-17
PH12012501446A1 (en) 2015-07-20
EP2405426A1 (en) 2012-01-11
US20130185075A1 (en) 2013-07-18
CY1114649T1 (el) 2016-12-14
SG174241A1 (en) 2011-10-28
US20130185085A1 (en) 2013-07-18
US8666754B2 (en) 2014-03-04
RU2493619C1 (ru) 2013-09-20

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