CN1195930A - 音频信号编码方法及其有关设备 - Google Patents
音频信号编码方法及其有关设备 Download PDFInfo
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- CN1195930A CN1195930A CN98104180A CN98104180A CN1195930A CN 1195930 A CN1195930 A CN 1195930A CN 98104180 A CN98104180 A CN 98104180A CN 98104180 A CN98104180 A CN 98104180A CN 1195930 A CN1195930 A CN 1195930A
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- 238000013139 quantization Methods 0.000 claims description 61
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- 238000006243 chemical reaction Methods 0.000 claims description 23
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Images
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
-
- 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
-
- 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
-
- 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
- G10L19/04—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
- G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Telephone Function (AREA)
Abstract
Description
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI971108 | 1997-03-14 | ||
FI971108A FI114248B (fi) | 1997-03-14 | 1997-03-14 | Menetelmä ja laite audiokoodaukseen ja audiodekoodaukseen |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1195930A true CN1195930A (zh) | 1998-10-14 |
CN1135721C CN1135721C (zh) | 2004-01-21 |
Family
ID=8548401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB981041809A Expired - Lifetime CN1135721C (zh) | 1997-03-14 | 1998-03-13 | 音频信号编码方法及其有关设备 |
Country Status (13)
Country | Link |
---|---|
US (2) | US6721700B1 (zh) |
EP (1) | EP0966793B1 (zh) |
JP (2) | JP3391686B2 (zh) |
KR (1) | KR100469002B1 (zh) |
CN (1) | CN1135721C (zh) |
AU (1) | AU733156B2 (zh) |
DE (1) | DE19811039B4 (zh) |
ES (1) | ES2164414T3 (zh) |
FI (1) | FI114248B (zh) |
FR (1) | FR2761801B1 (zh) |
GB (1) | GB2323759B (zh) |
SE (1) | SE521129C2 (zh) |
WO (1) | WO1998042083A1 (zh) |
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CN101091317B (zh) * | 2005-01-12 | 2011-05-11 | 日本电信电话株式会社 | 用于长期预测编码和长期预测解码的方法和装置 |
CN101075436B (zh) * | 2007-06-26 | 2011-07-13 | 北京中星微电子有限公司 | 带补偿的音频编、解码方法及装置 |
CN101925950B (zh) * | 2008-01-04 | 2013-10-02 | 杜比国际公司 | 音频编码器和解码器 |
CN112564713A (zh) * | 2020-11-30 | 2021-03-26 | 福州大学 | 高效率低时延的动觉信号编解码器及编解码方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2380640A (en) * | 2001-08-21 | 2003-04-09 | Micron Technology Inc | Data compression method |
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 |
US7240001B2 (en) * | 2001-12-14 | 2007-07-03 | Microsoft Corporation | Quality improvement techniques in an audio encoder |
US7016547B1 (en) | 2002-06-28 | 2006-03-21 | Microsoft Corporation | Adaptive entropy encoding/decoding for screen capture content |
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 |
US7299190B2 (en) * | 2002-09-04 | 2007-11-20 | Microsoft Corporation | Quantization and inverse quantization for audio |
US7502743B2 (en) * | 2002-09-04 | 2009-03-10 | Microsoft Corporation | Multi-channel audio encoding and decoding with multi-channel transform selection |
ES2297083T3 (es) | 2002-09-04 | 2008-05-01 | Microsoft Corporation | Codificacion entropica por adaptacion de la codificacion entre modos por longitud de ejecucion y por nivel. |
US7433824B2 (en) * | 2002-09-04 | 2008-10-07 | Microsoft Corporation | Entropy coding by adapting coding between level and run-length/level modes |
KR100524065B1 (ko) * | 2002-12-23 | 2005-10-26 | 삼성전자주식회사 | 시간-주파수 상관성을 이용한 개선된 오디오 부호화및/또는 복호화 방법과 그 장치 |
TWI220753B (en) * | 2003-01-20 | 2004-09-01 | Mediatek Inc | Method for determining quantization parameters |
US7688894B2 (en) | 2003-09-07 | 2010-03-30 | Microsoft Corporation | Scan patterns for interlaced video content |
US7724827B2 (en) * | 2003-09-07 | 2010-05-25 | Microsoft Corporation | Multi-layer run level encoding and decoding |
US7782954B2 (en) | 2003-09-07 | 2010-08-24 | Microsoft Corporation | Scan patterns for progressive video content |
US20070206682A1 (en) * | 2003-09-29 | 2007-09-06 | Eric Hamilton | Method And Apparatus For Coding Information |
TWI227866B (en) * | 2003-11-07 | 2005-02-11 | Mediatek Inc | Subband analysis/synthesis filtering method |
US7933767B2 (en) * | 2004-12-27 | 2011-04-26 | Nokia Corporation | Systems and methods for determining pitch lag for a current frame of information |
US7693709B2 (en) | 2005-07-15 | 2010-04-06 | Microsoft Corporation | Reordering coefficients for waveform coding or decoding |
US7684981B2 (en) | 2005-07-15 | 2010-03-23 | Microsoft Corporation | Prediction of spectral coefficients in waveform coding and decoding |
US7599840B2 (en) * | 2005-07-15 | 2009-10-06 | Microsoft Corporation | Selectively using multiple entropy models in adaptive coding and decoding |
US7539612B2 (en) * | 2005-07-15 | 2009-05-26 | Microsoft Corporation | Coding and decoding scale factor information |
US7933337B2 (en) | 2005-08-12 | 2011-04-26 | Microsoft Corporation | Prediction of transform coefficients for image compression |
US8599925B2 (en) | 2005-08-12 | 2013-12-03 | Microsoft Corporation | Efficient coding and decoding of transform blocks |
US7565018B2 (en) * | 2005-08-12 | 2009-07-21 | Microsoft Corporation | Adaptive coding and decoding of wide-range coefficients |
GB2436192B (en) * | 2006-03-14 | 2008-03-05 | Motorola Inc | Speech communication unit integrated circuit and method therefor |
DE102006022346B4 (de) * | 2006-05-12 | 2008-02-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Informationssignalcodierung |
RU2464650C2 (ru) * | 2006-12-13 | 2012-10-20 | Панасоник Корпорэйшн | Устройство и способ кодирования, устройство и способ декодирования |
US8184710B2 (en) | 2007-02-21 | 2012-05-22 | Microsoft Corporation | Adaptive truncation of transform coefficient data in a transform-based digital media codec |
WO2008114075A1 (en) * | 2007-03-16 | 2008-09-25 | Nokia Corporation | An encoder |
US7774205B2 (en) | 2007-06-15 | 2010-08-10 | Microsoft Corporation | Coding of sparse digital media spectral data |
US20090048827A1 (en) * | 2007-08-17 | 2009-02-19 | Manoj Kumar | Method and system for audio frame estimation |
WO2009132662A1 (en) * | 2008-04-28 | 2009-11-05 | Nokia Corporation | Encoding/decoding for improved frequency response |
US8179974B2 (en) | 2008-05-02 | 2012-05-15 | Microsoft Corporation | Multi-level representation of reordered transform coefficients |
KR20090122143A (ko) * | 2008-05-23 | 2009-11-26 | 엘지전자 주식회사 | 오디오 신호 처리 방법 및 장치 |
US8406307B2 (en) | 2008-08-22 | 2013-03-26 | Microsoft Corporation | Entropy coding/decoding of hierarchically organized data |
EP3373297B1 (en) * | 2008-09-18 | 2023-12-06 | Electronics and Telecommunications Research Institute | Decoding apparatus for transforming between modified discrete cosine transform-based coder and hetero coder |
CN102016530B (zh) * | 2009-02-13 | 2012-11-14 | 华为技术有限公司 | 一种基音周期检测方法和装置 |
DE102010006573B4 (de) * | 2010-02-02 | 2012-03-15 | Rohde & Schwarz Gmbh & Co. Kg | IQ-Datenkompression für Breitbandanwendungen |
EP3176784B1 (en) | 2013-01-08 | 2020-01-01 | Dolby International AB | Model based prediction in a filterbank |
US10638227B2 (en) | 2016-12-02 | 2020-04-28 | Dirac Research Ab | Processing of an audio input signal |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US4969192A (en) | 1987-04-06 | 1990-11-06 | Voicecraft, Inc. | Vector adaptive predictive coder for speech and audio |
GB8803390D0 (en) | 1988-02-13 | 1988-03-16 | Univ Belfast | Method and apparatus for electrical signal coding |
FR2628589B1 (fr) * | 1988-03-14 | 1994-03-04 | Etat Francais | Codeur differentiel a filtre predicteur auto-adaptatif et decodeur utilisable en liaison avec un tel codeur |
EP0364647B1 (en) * | 1988-10-19 | 1995-02-22 | International Business Machines Corporation | Improvement to vector quantizing coder |
IT1232084B (it) * | 1989-05-03 | 1992-01-23 | Cselt Centro Studi Lab Telecom | Sistema di codifica per segnali audio a banda allargata |
FR2646978B1 (fr) | 1989-05-11 | 1991-08-23 | France Etat | Procede et installation a codage de signaux sonores |
US5115240A (en) * | 1989-09-26 | 1992-05-19 | Sony Corporation | Method and apparatus for encoding voice signals divided into a plurality of frequency bands |
US5754976A (en) * | 1990-02-23 | 1998-05-19 | Universite De Sherbrooke | Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech |
CA2010830C (en) | 1990-02-23 | 1996-06-25 | Jean-Pierre Adoul | Dynamic codebook for efficient speech coding based on algebraic codes |
JPH04119542A (ja) | 1990-09-07 | 1992-04-21 | Nikon Corp | 光磁気記録媒体カートリッジ |
US5206884A (en) | 1990-10-25 | 1993-04-27 | Comsat | Transform domain quantization technique for adaptive predictive coding |
FI95085C (fi) | 1992-05-11 | 1995-12-11 | Nokia Mobile Phones Ltd | Menetelmä puhesignaalin digitaaliseksi koodaamiseksi sekä puhekooderi menetelmän suorittamiseksi |
FI91345C (fi) | 1992-06-24 | 1994-06-10 | Nokia Mobile Phones Ltd | Menetelmä kanavanvaihdon tehostamiseksi |
SG47025A1 (en) * | 1993-03-26 | 1998-03-20 | Motorola Inc | Vector quantizer method and apparatus |
IT1270438B (it) * | 1993-06-10 | 1997-05-05 | Sip | Procedimento e dispositivo per la determinazione del periodo del tono fondamentale e la classificazione del segnale vocale in codificatori numerici della voce |
FI98163C (fi) * | 1994-02-08 | 1997-04-25 | Nokia Mobile Phones Ltd | Koodausjärjestelmä parametriseen puheenkoodaukseen |
EP0709981B1 (en) * | 1994-10-28 | 2002-01-09 | RAI RADIOTELEVISIONE ITALIANA (S.p.A.) | Subband coding with pitchband predictive coding in each subband |
AU704693B2 (en) * | 1994-12-20 | 1999-04-29 | Dolby Laboratories Licensing Corporation | Method and apparatus for applying waveform prediction to subbands of a perceptual coding system |
US5706395A (en) * | 1995-04-19 | 1998-01-06 | Texas Instruments Incorporated | Adaptive weiner filtering using a dynamic suppression factor |
TW321810B (zh) * | 1995-10-26 | 1997-12-01 | Sony Co Ltd | |
JP3481027B2 (ja) * | 1995-12-18 | 2003-12-22 | 沖電気工業株式会社 | 音声符号化装置 |
US5778335A (en) * | 1996-02-26 | 1998-07-07 | The Regents Of The University Of California | Method and apparatus for efficient multiband celp wideband speech and music coding and decoding |
FI964975A (fi) * | 1996-12-12 | 1998-06-13 | Nokia Mobile Phones Ltd | Menetelmä ja laite puheen koodaamiseksi |
-
1997
- 1997-03-14 FI FI971108A patent/FI114248B/fi not_active IP Right Cessation
-
1998
- 1998-02-18 EP EP98904191A patent/EP0966793B1/en not_active Expired - Lifetime
- 1998-02-18 KR KR10-1999-7008369A patent/KR100469002B1/ko not_active IP Right Cessation
- 1998-02-18 ES ES98904191T patent/ES2164414T3/es not_active Expired - Lifetime
- 1998-02-18 AU AU62164/98A patent/AU733156B2/en not_active Expired
- 1998-02-18 WO PCT/FI1998/000146 patent/WO1998042083A1/en active IP Right Grant
- 1998-03-06 US US09/036,102 patent/US6721700B1/en not_active Expired - Lifetime
- 1998-03-10 SE SE9800776A patent/SE521129C2/sv not_active IP Right Cessation
- 1998-03-12 GB GB9805294A patent/GB2323759B/en not_active Expired - Lifetime
- 1998-03-13 CN CNB981041809A patent/CN1135721C/zh not_active Expired - Lifetime
- 1998-03-13 JP JP06351498A patent/JP3391686B2/ja not_active Expired - Lifetime
- 1998-03-13 DE DE19811039A patent/DE19811039B4/de not_active Expired - Lifetime
- 1998-03-13 FR FR9803135A patent/FR2761801B1/fr not_active Expired - Lifetime
-
2002
- 2002-10-07 JP JP2002293702A patent/JP2003140697A/ja active Pending
-
2003
- 2003-11-07 US US10/704,068 patent/US7194407B2/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101091317B (zh) * | 2005-01-12 | 2011-05-11 | 日本电信电话株式会社 | 用于长期预测编码和长期预测解码的方法和装置 |
CN101996637B (zh) * | 2005-01-12 | 2012-08-08 | 日本电信电话株式会社 | 长期预测编码和长期预测解码的方法和装置 |
CN101075436B (zh) * | 2007-06-26 | 2011-07-13 | 北京中星微电子有限公司 | 带补偿的音频编、解码方法及装置 |
CN101925950B (zh) * | 2008-01-04 | 2013-10-02 | 杜比国际公司 | 音频编码器和解码器 |
CN112564713A (zh) * | 2020-11-30 | 2021-03-26 | 福州大学 | 高效率低时延的动觉信号编解码器及编解码方法 |
CN112564713B (zh) * | 2020-11-30 | 2023-09-19 | 福州大学 | 高效率低时延的动觉信号编解码器及编解码方法 |
Also Published As
Publication number | Publication date |
---|---|
SE9800776L (sv) | 1998-09-15 |
FR2761801A1 (fr) | 1998-10-09 |
AU6216498A (en) | 1998-10-12 |
FI971108A (fi) | 1998-09-15 |
GB9805294D0 (en) | 1998-05-06 |
EP0966793A1 (en) | 1999-12-29 |
ES2164414T3 (es) | 2002-02-16 |
CN1135721C (zh) | 2004-01-21 |
AU733156B2 (en) | 2001-05-10 |
GB2323759B (en) | 2002-01-16 |
EP0966793B1 (en) | 2001-09-19 |
GB2323759A (en) | 1998-09-30 |
DE19811039B4 (de) | 2005-07-21 |
JPH10282999A (ja) | 1998-10-23 |
FR2761801B1 (fr) | 1999-12-31 |
KR100469002B1 (ko) | 2005-01-29 |
FI114248B (fi) | 2004-09-15 |
SE9800776D0 (sv) | 1998-03-10 |
FI971108A0 (fi) | 1997-03-14 |
US20040093208A1 (en) | 2004-05-13 |
US6721700B1 (en) | 2004-04-13 |
JP3391686B2 (ja) | 2003-03-31 |
JP2003140697A (ja) | 2003-05-16 |
SE521129C2 (sv) | 2003-09-30 |
DE19811039A1 (de) | 1998-09-17 |
KR20000076273A (ko) | 2000-12-26 |
WO1998042083A1 (en) | 1998-09-24 |
US7194407B2 (en) | 2007-03-20 |
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