JPS61112433A - 周波数領域音声符号化方法および装置 - Google Patents

周波数領域音声符号化方法および装置

Info

Publication number
JPS61112433A
JPS61112433A JP60186526A JP18652685A JPS61112433A JP S61112433 A JPS61112433 A JP S61112433A JP 60186526 A JP60186526 A JP 60186526A JP 18652685 A JP18652685 A JP 18652685A JP S61112433 A JPS61112433 A JP S61112433A
Authority
JP
Japan
Prior art keywords
signal
bits
encoding
frequency
subband
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP60186526A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0525408B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
コー・スー・ニー
コスタス・クシデイアス
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of JPS61112433A publication Critical patent/JPS61112433A/ja
Publication of JPH0525408B2 publication Critical patent/JPH0525408B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Analogue/Digital Conversion (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
JP60186526A 1984-08-24 1985-08-24 周波数領域音声符号化方法および装置 Granted JPS61112433A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848421498A GB8421498D0 (en) 1984-08-24 1984-08-24 Frequency domain speech coding
GB8421498 1984-08-24

Publications (2)

Publication Number Publication Date
JPS61112433A true JPS61112433A (ja) 1986-05-30
JPH0525408B2 JPH0525408B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-04-12

Family

ID=10565770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60186526A Granted JPS61112433A (ja) 1984-08-24 1985-08-24 周波数領域音声符号化方法および装置

Country Status (7)

Country Link
US (1) US4949383A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0176243B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS61112433A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE50896T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1248234A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3576444D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB8421498D0 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0646531U (ja) * 1992-12-07 1994-06-28 利秋 山本 学童用机の作業用天板

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986003873A1 (en) * 1984-12-20 1986-07-03 Gte Laboratories Incorporated Method and apparatus for encoding speech
US4790016A (en) * 1985-11-14 1988-12-06 Gte Laboratories Incorporated Adaptive method and apparatus for coding speech
EP0208712B1 (en) * 1984-12-20 1993-04-07 Gte Laboratories Incorporated Adaptive method and apparatus for coding speech
US4899384A (en) * 1986-08-25 1990-02-06 Ibm Corporation Table controlled dynamic bit allocation in a variable rate sub-band speech coder
NL8700985A (nl) * 1987-04-27 1988-11-16 Philips Nv Systeem voor sub-band codering van een digitaal audiosignaal.
US4926482A (en) * 1987-06-26 1990-05-15 Unisys Corp. Apparatus and method for real time data compressor
US5341457A (en) * 1988-12-30 1994-08-23 At&T Bell Laboratories Perceptual coding of audio signals
USRE40280E1 (en) 1988-12-30 2008-04-29 Lucent Technologies Inc. Rate loop processor for perceptual encoder/decoder
US5222189A (en) * 1989-01-27 1993-06-22 Dolby Laboratories Licensing Corporation Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio
US5109417A (en) * 1989-01-27 1992-04-28 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
EP0447495B1 (en) * 1989-01-27 1994-12-28 Dolby Laboratories Licensing Corporation Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio
US5752225A (en) * 1989-01-27 1998-05-12 Dolby Laboratories Licensing Corporation Method and apparatus for split-band encoding and split-band decoding of audio information using adaptive bit allocation to adjacent subbands
EP0560413B2 (en) * 1989-01-27 2002-05-15 Dolby Laboratories Licensing Corporation Adaptive bit allocation for audio encoder and decoder
US5142656A (en) * 1989-01-27 1992-08-25 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5115240A (en) * 1989-09-26 1992-05-19 Sony Corporation Method and apparatus for encoding voice signals divided into a plurality of frequency bands
US5388181A (en) * 1990-05-29 1995-02-07 Anderson; David J. Digital audio compression system
US5235671A (en) * 1990-10-15 1993-08-10 Gte Laboratories Incorporated Dynamic bit allocation subband excited transform coding method and apparatus
US5206884A (en) * 1990-10-25 1993-04-27 Comsat Transform domain quantization technique for adaptive predictive coding
NL9100173A (nl) * 1991-02-01 1992-09-01 Philips Nv Subbandkodeerinrichting, en een zender voorzien van de kodeerinrichting.
US5317672A (en) * 1991-03-05 1994-05-31 Picturetel Corporation Variable bit rate speech encoder
WO1992015986A1 (en) * 1991-03-05 1992-09-17 Picturetel Corporation Variable bit rate speech encoder
US5559900A (en) * 1991-03-12 1996-09-24 Lucent Technologies Inc. Compression of signals for perceptual quality by selecting frequency bands having relatively high energy
EP0522219B1 (en) * 1991-07-11 1997-10-15 International Business Machines Corporation Improved method for subband coding images and device for implementing said method
DE4124493C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1991-07-24 1993-02-11 Institut Fuer Rundfunktechnik Gmbh, 8000 Muenchen, De
AU665200B2 (en) * 1991-08-02 1995-12-21 Sony Corporation Digital encoder with dynamic quantization bit allocation
EP0559348A3 (en) 1992-03-02 1993-11-03 AT&T Corp. Rate control loop processor for perceptual encoder/decoder
JP3153933B2 (ja) * 1992-06-16 2001-04-09 ソニー株式会社 データ符号化装置及び方法並びにデータ復号化装置及び方法
US6252909B1 (en) * 1992-09-21 2001-06-26 Aware, Inc. Multi-carrier transmission system utilizing channels of different bandwidth
US5408580A (en) * 1992-09-21 1995-04-18 Aware, Inc. Audio compression system employing multi-rate signal analysis
DE4236989C2 (de) * 1992-11-02 1994-11-17 Fraunhofer Ges Forschung Verfahren zur Übertragung und/oder Speicherung digitaler Signale mehrerer Kanäle
US5563960A (en) * 1993-01-22 1996-10-08 David Sarnoff Research Center, Inc. Apparatus and method for emphasizing a selected region in the compressed representation of an image
US5412741A (en) * 1993-01-22 1995-05-02 David Sarnoff Research Center, Inc. Apparatus and method for compressing information
JP3186292B2 (ja) * 1993-02-02 2001-07-11 ソニー株式会社 高能率符号化方法及び装置
JP3186307B2 (ja) * 1993-03-09 2001-07-11 ソニー株式会社 圧縮データ記録装置及び方法
US5526464A (en) * 1993-04-29 1996-06-11 Northern Telecom Limited Reducing search complexity for code-excited linear prediction (CELP) coding
US5581654A (en) * 1993-05-25 1996-12-03 Sony Corporation Method and apparatus for information encoding and decoding
US5664057A (en) * 1993-07-07 1997-09-02 Picturetel Corporation Fixed bit rate speech encoder/decoder
CA2166723A1 (en) * 1993-07-07 1995-01-19 Antony Henry Crossman A fixed bit rate speech encoder/decoder
US5632003A (en) * 1993-07-16 1997-05-20 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for coding method and apparatus
BE1007617A3 (nl) * 1993-10-11 1995-08-22 Philips Electronics Nv Transmissiesysteem met gebruik van verschillende codeerprincipes.
JP3125543B2 (ja) * 1993-11-29 2001-01-22 ソニー株式会社 信号符号化方法及び装置、信号復号化方法及び装置、並びに記録媒体
US5608713A (en) * 1994-02-09 1997-03-04 Sony Corporation Bit allocation of digital audio signal blocks by non-linear processing
RU2129737C1 (ru) * 1994-02-17 1999-04-27 Моторола, Инк. Способ группового кодирования сигналов и устройство для осуществления способа
JP3186412B2 (ja) * 1994-04-01 2001-07-11 ソニー株式会社 情報符号化方法、情報復号化方法、及び情報伝送方法
JP3277699B2 (ja) * 1994-06-13 2002-04-22 ソニー株式会社 信号符号化方法及び装置並びに信号復号化方法及び装置
JP3277705B2 (ja) 1994-07-27 2002-04-22 ソニー株式会社 情報符号化装置及び方法、並びに情報復号化装置及び方法
JP3341474B2 (ja) * 1994-07-28 2002-11-05 ソニー株式会社 情報符号化方法及び復号化方法、情報符号化装置及び復号化装置、並びに情報記録媒体
JP3557674B2 (ja) * 1994-12-15 2004-08-25 ソニー株式会社 高能率符号化方法及び装置
US5913186A (en) * 1996-03-25 1999-06-15 Prometheus, Inc. Discrete one dimensional signal processing apparatus and method using energy spreading coding
US5984514A (en) * 1996-12-20 1999-11-16 Analog Devices, Inc. Method and apparatus for using minimal and optimal amount of SRAM delay line storage in the calculation of an X Y separable mallat wavelet transform
US5838377A (en) * 1996-12-20 1998-11-17 Analog Devices, Inc. Video compressed circuit using recursive wavelet filtering
GB2326572A (en) * 1997-06-19 1998-12-23 Softsound Limited Low bit rate audio coder and decoder
JP2002330075A (ja) * 2001-05-07 2002-11-15 Matsushita Electric Ind Co Ltd サブバンドａｄｐｃｍ符号化方法、復号方法、サブバンドａｄｐｃｍ符号化装置、復号装置およびワイヤレスマイクロホン送信システム、受信システム
US7240001B2 (en) 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US6934677B2 (en) * 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US7043423B2 (en) * 2002-07-16 2006-05-09 Dolby Laboratories Licensing Corporation Low bit-rate audio coding systems and methods that use expanding quantizers with arithmetic coding
JP4676140B2 (ja) 2002-09-04 2011-04-27 マイクロソフト コーポレーション オーディオの量子化および逆量子化
US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
FR2849727B1 (fr) * 2003-01-08 2005-03-18 France Telecom Procede de codage et de decodage audio a debit variable
KR100940531B1 (ko) * 2003-07-16 2010-02-10 삼성전자주식회사 광대역 음성 신호 압축 및 복원 장치와 그 방법
US7460990B2 (en) 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US8249883B2 (en) 2007-10-26 2012-08-21 Microsoft Corporation Channel extension coding for multi-channel source
KR20140085453A (ko) * 2011-10-27 2014-07-07 엘지전자 주식회사 음성 신호 부호화 방법 및 복호화 방법과 이를 이용하는 장치
WO2013168414A1 (ja) * 2012-05-11 2013-11-14 パナソニック株式会社 音信号ハイブリッドエンコーダ、音信号ハイブリッドデコーダ、音信号符号化方法、及び音信号復号方法
CN103544957B (zh) * 2012-07-13 2017-04-12 华为技术有限公司 音频信号的比特分配的方法和装置
US9460729B2 (en) 2012-09-21 2016-10-04 Dolby Laboratories Licensing Corporation Layered approach to spatial audio coding
CN111312278B (zh) 2014-03-03 2023-08-15 三星电子株式会社 用于带宽扩展的高频解码的方法及设备
KR102865245B1 (ko) 2014-03-24 2025-09-25 삼성전자주식회사 고대역 부호화방법 및 장치와 고대역 복호화 방법 및 장치
MX2023008890A (es) * 2021-01-29 2023-08-09 Nokia Technologies Oy Determinacion de codificacion y decodificacion asociada de parametro de audio espacial.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2389277A1 (fr) * 1977-04-29 1978-11-24 Ibm France Procede de quantification a allocation dynamique du taux de bits disponible, et dispositif de mise en oeuvre dudit procede
FR2412987A1 (fr) * 1977-12-23 1979-07-20 Ibm France Procede de compression de donnees relatives au signal vocal et dispositif mettant en oeuvre ledit procede
US4184049A (en) * 1978-08-25 1980-01-15 Bell Telephone Laboratories, Incorporated Transform speech signal coding with pitch controlled adaptive quantizing
DE3102822C2 (de) * 1981-01-28 1984-02-16 Siemens AG, 1000 Berlin und 8000 München Verfahren zur frequenzbandkomprimierten Sprachübertragung
JPS5921039B2 (ja) * 1981-11-04 1984-05-17 日本電信電話株式会社 適応予測符号化方式
EP0085820B1 (fr) * 1982-02-09 1985-11-21 International Business Machines Corporation Procédé de transmission numérique multi-vitesses et dispositif de mise en oeuvre dudit procédé
US4516258A (en) * 1982-06-30 1985-05-07 At&T Bell Laboratories Bit allocation generator for adaptive transform coder
US4535472A (en) * 1982-11-05 1985-08-13 At&T Bell Laboratories Adaptive bit allocator
CA1253255A (en) * 1983-05-16 1989-04-25 Nec Corporation System for simultaneously coding and decoding a plurality of signals
GB8330885D0 (en) * 1983-11-18 1983-12-29 British Telecomm Data transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0646531U (ja) * 1992-12-07 1994-06-28 利秋 山本 学童用机の作業用天板

Also Published As

Publication number Publication date
US4949383A (en) 1990-08-14
EP0176243A2 (en) 1986-04-02
JPH0525408B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-04-12
ATE50896T1 (de) 1990-03-15
CA1248234A (en) 1989-01-03
DE3576444D1 (de) 1990-04-12
EP0176243A3 (en) 1986-12-30
EP0176243B1 (en) 1990-03-07
GB8421498D0 (en) 1984-09-26

Similar Documents

Publication Publication Date Title
JPS61112433A (ja) 周波数領域音声符号化方法および装置
US5664056A (en) Digital encoder with dynamic quantization bit allocation
KR100295217B1 (ko) 신호스펙트럼-의존양자화비트할당및노이즈스펙트럼-의존양자화비트할당으로서디지탈입력신호를압축하는장치
US5040217A (en) Perceptual coding of audio signals
JP2732854B2 (ja) ディジタルオーディオ信号のサブバンド符号化用ディジタルシステム
JP3804968B2 (ja) 適応配分式符号化・復号装置及び方法
EP1377966B1 (en) Audio compression
US4972484A (en) Method of transmitting or storing masked sub-band coded audio signals
KR100361236B1 (ko) 차분코딩원리를구현하는전송시스템
US6104321A (en) Efficient encoding method, efficient code decoding method, efficient code encoding apparatus, efficient code decoding apparatus, efficient encoding/decoding system, and recording media
JP3278900B2 (ja) データ符号化装置及び方法
KR100941011B1 (ko) 부호화 방법 및 장치, 및 복호 방법 및 장치
JPH04104617A (ja) ディジタル信号符号化装置
US6647063B1 (en) Information encoding method and apparatus, information decoding method and apparatus and recording medium
JP3557674B2 (ja) 高能率符号化方法及び装置
EP0398973B1 (en) Method and apparatus for electrical signal coding
EP0141520A2 (en) Sub-band coding method
JP3291948B2 (ja) 高能率符号化方法及び装置、並びに伝送媒体
JPH03139922A (ja) ディジタル音声データの高能率符号化方法及びディジタル音声データの復号化装置
KR100351772B1 (ko) 디지털부호화장치,디지털기록신호도출장치및디지털신호데이터도출방법
JP2575265B2 (ja) ディジタルオーディオ信号の符号化方法
JP3141853B2 (ja) オーディオ信号処理方法
Ching et al. Walsh-transform coding of the speech residual in RELP coders
KR100275057B1 (ko) 오디오 신호 처리 방법
KR0134350B1 (ko) 적응적 비트할당을 이용한 부호화 및 복호화시스템

Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term