ATE537536T1 - Sprachkodierungsvorrichtung und sprachkodierungsverfahren - Google Patents

Sprachkodierungsvorrichtung und sprachkodierungsverfahren

Info

Publication number
ATE537536T1
ATE537536T1 AT05799362T AT05799362T ATE537536T1 AT E537536 T1 ATE537536 T1 AT E537536T1 AT 05799362 T AT05799362 T AT 05799362T AT 05799362 T AT05799362 T AT 05799362T AT E537536 T1 ATE537536 T1 AT E537536T1
Authority
AT
Austria
Prior art keywords
analysis
section
mdct
window
voice coding
Prior art date
Application number
AT05799362T
Other languages
English (en)
Inventor
Masahiro Oshikiri
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Application granted granted Critical
Publication of ATE537536T1 publication Critical patent/ATE537536T1/de

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
    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction

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)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Electrophonic Musical Instruments (AREA)
AT05799362T 2004-10-26 2005-10-25 Sprachkodierungsvorrichtung und sprachkodierungsverfahren ATE537536T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004311143 2004-10-26
PCT/JP2005/019578 WO2006046546A1 (ja) 2004-10-26 2005-10-25 音声符号化装置および音声符号化方法

Publications (1)

Publication Number Publication Date
ATE537536T1 true ATE537536T1 (de) 2011-12-15

Family

ID=36227786

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05799362T ATE537536T1 (de) 2004-10-26 2005-10-25 Sprachkodierungsvorrichtung und sprachkodierungsverfahren

Country Status (8)

Country Link
US (1) US8326606B2 (de)
EP (1) EP1793372B1 (de)
JP (1) JP5100124B2 (de)
KR (1) KR20070068424A (de)
CN (1) CN101061533B (de)
AT (1) ATE537536T1 (de)
BR (1) BRPI0517513A (de)
WO (1) WO2006046546A1 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE537536T1 (de) * 2004-10-26 2011-12-15 Panasonic Corp Sprachkodierungsvorrichtung und sprachkodierungsverfahren
EP1926083A4 (de) 2005-09-30 2011-01-26 Panasonic Corp Audiocodierungsgerät und audiocodierungsmethode
US7991611B2 (en) * 2005-10-14 2011-08-02 Panasonic Corporation Speech encoding apparatus and speech encoding method that encode speech signals in a scalable manner, and speech decoding apparatus and speech decoding method that decode scalable encoded signals
DE602007013026D1 (de) * 2006-04-27 2011-04-21 Panasonic Corp Audiocodierungseinrichtung, audiodecodierungseinrichtung und verfahren dafür
US7987089B2 (en) 2006-07-31 2011-07-26 Qualcomm Incorporated Systems and methods for modifying a zero pad region of a windowed frame of an audio signal
US8036903B2 (en) 2006-10-18 2011-10-11 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Analysis filterbank, synthesis filterbank, encoder, de-coder, mixer and conferencing system
KR101016224B1 (ko) * 2006-12-12 2011-02-25 프라운호퍼-게젤샤프트 추르 푀르데룽 데어 안제반텐 포르슝 에 파우 인코더, 디코더 및 시간 영역 데이터 스트림을 나타내는 데이터 세그먼트를 인코딩하고 디코딩하는 방법
JP5339919B2 (ja) * 2006-12-15 2013-11-13 パナソニック株式会社 符号化装置、復号装置およびこれらの方法
US9653088B2 (en) 2007-06-13 2017-05-16 Qualcomm Incorporated Systems, methods, and apparatus for signal encoding using pitch-regularizing and non-pitch-regularizing coding
CA2697920C (en) * 2007-08-27 2018-01-02 Telefonaktiebolaget L M Ericsson (Publ) Transient detector and method for supporting encoding of an audio signal
WO2009047675A2 (en) * 2007-10-10 2009-04-16 Koninklijke Philips Electronics N.V. Encoding and decoding of an audio signal
CN101604983B (zh) * 2008-06-12 2013-04-24 华为技术有限公司 编解码装置、系统及其方法
PL2301020T3 (pl) * 2008-07-11 2013-06-28 Fraunhofer Ges Forschung Urządzenie i sposób do kodowania/dekodowania sygnału audio z użyciem algorytmu przełączania aliasingu
US9773505B2 (en) 2008-09-18 2017-09-26 Electronics And Telecommunications Research Institute Encoding apparatus and decoding apparatus for transforming between modified discrete cosine transform-based coder and different coder
EP2460158A4 (de) 2009-07-27 2013-09-04 Verfahren und vorrichtung zur verarbeitung eines tonsignals
ES3051141T3 (en) 2009-10-21 2025-12-26 Dolby Int Ab Oversampling in a combined transposer filter bank
CN102243872A (zh) * 2010-05-10 2011-11-16 炬力集成电路设计有限公司 对音频数字信号进行编码、解码的方法及系统
KR101418227B1 (ko) 2010-11-24 2014-07-09 엘지전자 주식회사 스피치 시그널 부호화 방법 및 복호화 방법
FR2977439A1 (fr) * 2011-06-28 2013-01-04 France Telecom Fenetres de ponderation en codage/decodage par transformee avec recouvrement, optimisees en retard.
EP2795617B1 (de) * 2011-12-21 2016-08-10 Dolby International AB Audiokodierer und verfahren mit paralleler architektur
KR101390551B1 (ko) * 2012-09-24 2014-04-30 충북대학교 산학협력단 저 지연 변형된 이산 코사인 변환 방법
KR20140075466A (ko) * 2012-12-11 2014-06-19 삼성전자주식회사 오디오 신호의 인코딩 및 디코딩 방법, 및 오디오 신호의 인코딩 및 디코딩 장치
WO2014128197A1 (en) 2013-02-20 2014-08-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding or decoding an audio signal using a transient-location dependent overlap
EP2830058A1 (de) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Frequenzbereichsaudiocodierung mit Unterstützung von Transformationslängenschaltung
CN107004417B (zh) * 2014-12-09 2021-05-07 杜比国际公司 Mdct域错误掩盖
US10553230B2 (en) 2015-11-09 2020-02-04 Sony Corporation Decoding apparatus, decoding method, and program

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA921988B (en) * 1991-03-29 1993-02-24 Sony Corp High efficiency digital data encoding and decoding apparatus
US5487086A (en) * 1991-09-13 1996-01-23 Comsat Corporation Transform vector quantization for adaptive predictive coding
US5285498A (en) * 1992-03-02 1994-02-08 At&T Bell Laboratories Method and apparatus for coding audio signals based on perceptual model
JP3531177B2 (ja) * 1993-03-11 2004-05-24 ソニー株式会社 圧縮データ記録装置及び方法、圧縮データ再生方法
US5533052A (en) * 1993-10-15 1996-07-02 Comsat Corporation Adaptive predictive coding with transform domain quantization based on block size adaptation, backward adaptive power gain control, split bit-allocation and zero input response compensation
US6167093A (en) * 1994-08-16 2000-12-26 Sony Corporation Method and apparatus for encoding the information, method and apparatus for decoding the information and method for information transmission
CN1113492C (zh) * 1994-08-22 2003-07-02 索尼公司 发送接收装置
US5701389A (en) * 1995-01-31 1997-12-23 Lucent Technologies, Inc. Window switching based on interblock and intrablock frequency band energy
US5852806A (en) * 1996-03-19 1998-12-22 Lucent Technologies Inc. Switched filterbank for use in audio signal coding
US5825320A (en) * 1996-03-19 1998-10-20 Sony Corporation Gain control method for audio encoding device
US5848391A (en) 1996-07-11 1998-12-08 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Method subband of coding and decoding audio signals using variable length windows
US6138120A (en) * 1998-06-19 2000-10-24 Oracle Corporation System for sharing server sessions across multiple clients
JP2000134106A (ja) * 1998-10-29 2000-05-12 Matsushita Electric Ind Co Ltd オーディオ変換符号化のための周波数領域でのブロックサイズ判定適応方法
DE19921122C1 (de) * 1999-05-07 2001-01-25 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Verschleiern eines Fehlers in einem codierten Audiosignal und Verfahren und Vorrichtung zum Decodieren eines codierten Audiosignals
US20020147652A1 (en) * 2000-10-18 2002-10-10 Ahmed Gheith System and method for distruibuted client state management across a plurality of server computers
JP2002196792A (ja) * 2000-12-25 2002-07-12 Matsushita Electric Ind Co Ltd 音声符号化方式、音声符号化方法およびそれを用いる音声符号化装置、記録媒体、ならびに音楽配信システム
AU2001276588A1 (en) * 2001-01-11 2002-07-24 K. P. P. Kalyan Chakravarthy Adaptive-block-length audio coder
JP2003066998A (ja) * 2001-08-28 2003-03-05 Mitsubishi Electric Corp 音響信号符号化装置
US7460993B2 (en) * 2001-12-14 2008-12-02 Microsoft Corporation Adaptive window-size selection in transform coding
JP2003216188A (ja) 2002-01-25 2003-07-30 Matsushita Electric Ind Co Ltd オーディオ信号符号化方法、符号化装置、及び記憶媒体
EP1394772A1 (de) * 2002-08-28 2004-03-03 Deutsche Thomson-Brandt Gmbh Signalierung von Fensterschaltungen in einem MPEG Layer 3 Audio Datenstrom
JP2004252068A (ja) 2003-02-19 2004-09-09 Matsushita Electric Ind Co Ltd デジタルオーディオ信号の符号化装置及び方法
US7325023B2 (en) * 2003-09-29 2008-01-29 Sony Corporation Method of making a window type decision based on MDCT data in audio encoding
US7315822B2 (en) * 2003-10-20 2008-01-01 Microsoft Corp. System and method for a media codec employing a reversible transform obtained via matrix lifting
ATE537536T1 (de) * 2004-10-26 2011-12-15 Panasonic Corp Sprachkodierungsvorrichtung und sprachkodierungsverfahren
US7386445B2 (en) * 2005-01-18 2008-06-10 Nokia Corporation Compensation of transient effects in transform coding

Also Published As

Publication number Publication date
US20080065373A1 (en) 2008-03-13
CN101061533B (zh) 2011-05-18
EP1793372A1 (de) 2007-06-06
CN101061533A (zh) 2007-10-24
WO2006046546A1 (ja) 2006-05-04
KR20070068424A (ko) 2007-06-29
JPWO2006046546A1 (ja) 2008-05-22
BRPI0517513A (pt) 2008-10-14
EP1793372A4 (de) 2008-01-23
US8326606B2 (en) 2012-12-04
EP1793372B1 (de) 2011-12-14
JP5100124B2 (ja) 2012-12-19

Similar Documents

Publication Publication Date Title
ATE537536T1 (de) Sprachkodierungsvorrichtung und sprachkodierungsverfahren
PL1825461T3 (pl) Sposób i urządzenie do sztucznego rozszerzania szerokości pasma sygnałów mowy
TWI476763B (zh) A sound decoding apparatus, a sound decoding method, and a recording medium on which a voice decoding program is recorded
EP4325723A3 (de) Vorrichtung und verfahren zur erzeugung von zeitbereichsaudiomustern
ATE537537T1 (de) Signalkomprimierungsverfahren und -vorrichtung
JP5753540B2 (ja) ステレオ信号符号化装置、ステレオ信号復号装置、ステレオ信号符号化方法及びステレオ信号復号方法
RU2015118725A (ru) Аудиокодер и декодер
DE60207784D1 (de) Sprecheranpassung für die Spracherkennung
CA2985019A1 (en) Post-processor, pre-processor, audio encoder, audio decoder and related methods for enhancing transient processing
PT1334484E (pt) Melhorar o desempenho de sistemas de codificacao que utilizam metodos de reconstrucao a altas frequencias
DE60332833D1 (de) Audiocodierungssystem, das eigenschaften eines decodierten signals zur anpassung synthetisierter spektralkomponenten verwendet
NO20092017L (no) Fremgangsmate og innretning for koding av overgangsrammer i talesignaler
RU2015142108A (ru) Устройство и способ для уменьшения шума квантования в декодере временной области
WO2010008175A3 (ko) 음성/오디오 통합 신호의 부호화/복호화 장치
DK1317752T3 (da) En fremgangmåde og indretning til objektiv talekvalitetsvurdering uden referencesignal
EP1533791A3 (de) Sprachaktivitätsdetektion und Verbesserung der Sprachverständlichkeit
ATE343835T1 (de) Sprachverarbeitung
KR20090061499A (ko) Ｍｄｃｔ 영역에서 음질 향상을 위한 후처리 필터장치 및필터방법
JP2008261999A (ja) オーディオ復号装置
CA2701188A1 (en) Efficient implementation of analysis and synthesis filterbanks for mpeg aac and mpeg aac eld encoders/decoders
CN101228574A (zh) 一种控制前回声的编码和解码装置及方法
ES2911515T3 (es) Codificación de audio
ES2261637T3 (es) Sistema de codificacion del habla adpcm, con filtros de difuminado de fase y difuminado de fase inverso.
RU2023107991A (ru) Аудиокодер и декодер
CN101533639A (zh) 语音信号处理方法及装置