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)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (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
EP1793372B1 (de) * 2004-10-26 2011-12-14 Panasonic Corporation Sprachkodierungsvorrichtung und sprachkodierungsverfahren
KR20080049085A (ko) 2005-09-30 2008-06-03 마츠시타 덴끼 산교 가부시키가이샤 음성 부호화 장치 및 음성 부호화 방법
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
WO2007126015A1 (ja) * 2006-04-27 2007-11-08 Panasonic Corporation 音声符号化装置、音声復号化装置、およびこれらの方法
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
EP2052548B1 (de) 2006-12-12 2012-02-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Kodierer, dekodierer und verfahren zur kodierung und dekodierung von datensegmenten zur darstellung eines zeitdomänen-datenstroms
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
PT2186090T (pt) * 2007-08-27 2017-03-07 ERICSSON TELEFON AB L M (publ) Detetor de transitórios e método para suportar codificação de um sinal de áudio
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
EP2301020B1 (de) * 2008-07-11 2013-01-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und verfahren zur kodierung/dekodierung eines tonsignals anhand eines aliasing-schaltschemas
KR101670063B1 (ko) * 2008-09-18 2016-10-28 한국전자통신연구원 Ｍｄｃｔ 기반의 코더와 이종의 코더 간 변환에서의 인코딩 장치 및 디코딩 장치
WO2011013980A2 (en) 2009-07-27 2011-02-03 Lg Electronics Inc. A method and an apparatus for processing an audio signal
PL4152320T3 (pl) * 2009-10-21 2024-02-19 Dolby International Ab Nadpróbkowanie w banku filtrów połączonym z modułem transpozycji
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
WO2012070866A2 (ko) * 2010-11-24 2012-05-31 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.
US9548061B2 (en) 2011-11-30 2017-01-17 Dolby International Ab Audio encoder with parallel architecture
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
ES2736309T3 (es) 2013-02-20 2019-12-27 Fraunhofer Ges Forschung Aparato y procedimiento para codificar o descodificar una señal de audio utilizando una superposición que depende de una ubicación de transitorios
EP2830058A1 (de) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Frequenzbereichsaudiocodierung mit Unterstützung von Transformationslängenschaltung
HK1244948A1 (zh) * 2014-12-09 2018-08-17 Dolby International Ab 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
EP0725499B1 (de) * 1994-08-22 2005-11-02 Sony Corporation Sender-empfänger
US5701389A (en) * 1995-01-31 1997-12-23 Lucent Technologies, Inc. Window switching based on interblock and intrablock frequency band energy
US5825320A (en) * 1996-03-19 1998-10-20 Sony Corporation Gain control method for audio encoding device
US5852806A (en) * 1996-03-19 1998-12-22 Lucent Technologies Inc. Switched filterbank for use in audio signal coding
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
WO2002056297A1 (en) * 2001-01-11 2002-07-18 Sasken Communication Technologies Limited 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
EP1793372B1 (de) * 2004-10-26 2011-12-14 Panasonic Corporation 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
EP1793372A1 (de) 2007-06-06
JPWO2006046546A1 (ja) 2008-05-22
CN101061533A (zh) 2007-10-24
WO2006046546A1 (ja) 2006-05-04
US8326606B2 (en) 2012-12-04
CN101061533B (zh) 2011-05-18
EP1793372A4 (de) 2008-01-23
JP5100124B2 (ja) 2012-12-19
BRPI0517513A (pt) 2008-10-14
KR20070068424A (ko) 2007-06-29
EP1793372B1 (de) 2011-12-14
US20080065373A1 (en) 2008-03-13

Similar Documents

Publication Publication Date Title
ATE537536T1 (de) Sprachkodierungsvorrichtung und sprachkodierungsverfahren
TWI476763B (zh) A sound decoding apparatus, a sound decoding method, and a recording medium on which a voice decoding program is recorded
CA2985019C (en) Post-processor, pre-processor, audio encoder, audio decoder and related methods for enhancing transient processing
EP4325723A3 (de) Vorrichtung und verfahren zur erzeugung von zeitbereichsaudiomustern
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
DE60332833D1 (de) Audiocodierungssystem, das eigenschaften eines decodierten signals zur anpassung synthetisierter spektralkomponenten verwendet
NO20092017L (no) Fremgangsmate og innretning for koding av overgangsrammer i talesignaler
DE60103424D1 (de) Verbessern der leistung von kodierungssystemen, die hochfrequenz-rekonstruktionsverfahren verwenden
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
MY180722A (en) Concept for encoding an audio signal and decoding an audio signal using speech related spectral shaping information
ATE343835T1 (de) Sprachverarbeitung
EP1533791A3 (de) Sprachaktivitätsdetektion und Verbesserung der Sprachverständlichkeit
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
RU2023107991A (ru) Аудиокодер и декодер
CN101533639A (zh) 语音信号处理方法及装置
RU2019122302A (ru) Аудиокодер и декодер
JP2013057792A (ja) 音声符号化装置及び音声符号化方法