CN1288849C - 音频译码装置 - Google Patents
音频译码装置 Download PDFInfo
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- CN1288849C CN1288849C CNB2003101013284A CN200310101328A CN1288849C CN 1288849 C CN1288849 C CN 1288849C CN B2003101013284 A CNB2003101013284 A CN B2003101013284A CN 200310101328 A CN200310101328 A CN 200310101328A CN 1288849 C CN1288849 C CN 1288849C
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- 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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- 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
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Theoretical Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
存储容量 | 与先有例比 | |
图10(先有例) | 6400字 | 100% |
第2实施例 | 4608字 | 72% |
第3实施例 | 3968字 | 62% |
第4实施例 | 2432字 | 38% |
第5实施例 | 2048字 | 32% |
Claims (15)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP276293/1995 | 1995-09-29 | ||
JP27629395 | 1995-09-29 | ||
JP022107/1996 | 1996-01-12 | ||
JP2210796 | 1996-01-12 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN96122821A Division CN1130691C (zh) | 1995-09-29 | 1996-09-28 | 音频译码装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1496007A CN1496007A (zh) | 2004-05-12 |
CN1288849C true CN1288849C (zh) | 2006-12-06 |
Family
ID=26359282
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN96122821A Expired - Lifetime CN1130691C (zh) | 1995-09-29 | 1996-09-28 | 音频译码装置 |
CNB2003101013284A Expired - Lifetime CN1288849C (zh) | 1995-09-29 | 1996-09-28 | 音频译码装置 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN96122821A Expired - Lifetime CN1130691C (zh) | 1995-09-29 | 1996-09-28 | 音频译码装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US5867819A (zh) |
CN (2) | CN1130691C (zh) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3255034B2 (ja) * | 1996-08-09 | 2002-02-12 | 日本電気株式会社 | 音声信号処理回路 |
KR100206333B1 (ko) * | 1996-10-08 | 1999-07-01 | 윤종용 | 두개의 스피커를 이용한 멀티채널 오디오 재생장치및 방법 |
SG54379A1 (en) * | 1996-10-24 | 1998-11-16 | Sgs Thomson Microelectronics A | Audio decoder with an adaptive frequency domain downmixer |
TW429700B (en) * | 1997-02-26 | 2001-04-11 | Sony Corp | Information encoding method and apparatus, information decoding method and apparatus and information recording medium |
US5946352A (en) * | 1997-05-02 | 1999-08-31 | Texas Instruments Incorporated | Method and apparatus for downmixing decoded data streams in the frequency domain prior to conversion to the time domain |
DE69712230T2 (de) * | 1997-05-08 | 2002-10-31 | St Microelectronics Asia | Verfahren und gerät zur frequenzdomäneabwärtsumsetzung mit zwangblockschaltung für audiodekoderfunktionen |
CN1134004C (zh) * | 1997-11-21 | 2004-01-07 | 日本胜利株式会社 | 音频信号的编码装置、唱盘以及盘重放装置 |
SE9903553D0 (sv) | 1999-01-27 | 1999-10-01 | Lars Liljeryd | Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL) |
JP3805929B2 (ja) * | 1999-07-05 | 2006-08-09 | パイオニア株式会社 | 情報記録装置及び情報記録方法 |
SE0001926D0 (sv) | 2000-05-23 | 2000-05-23 | Lars Liljeryd | Improved spectral translation/folding in the subband domain |
US6725110B2 (en) * | 2000-05-26 | 2004-04-20 | Yamaha Corporation | Digital audio decoder |
DE60208426T2 (de) * | 2001-11-02 | 2006-08-24 | Matsushita Electric Industrial Co., Ltd., Kadoma | Vorrichtung zur signalkodierung, signaldekodierung und system zum verteilen von audiodaten |
US6950794B1 (en) | 2001-11-20 | 2005-09-27 | Cirrus Logic, Inc. | Feedforward prediction of scalefactors based on allowable distortion for noise shaping in psychoacoustic-based compression |
US7065491B2 (en) * | 2002-02-15 | 2006-06-20 | National Central University | Inverse-modified discrete cosine transform and overlap-add method and hardware structure for MPEG layer3 audio signal decoding |
WO2003094369A2 (en) * | 2002-05-03 | 2003-11-13 | Harman International Industries, Incorporated | Multi-channel downmixing device |
US20030220801A1 (en) * | 2002-05-22 | 2003-11-27 | Spurrier Thomas E. | Audio compression method and apparatus |
KR100524065B1 (ko) * | 2002-12-23 | 2005-10-26 | 삼성전자주식회사 | 시간-주파수 상관성을 이용한 개선된 오디오 부호화및/또는 복호화 방법과 그 장치 |
US7460684B2 (en) | 2003-06-13 | 2008-12-02 | Nielsen Media Research, Inc. | Method and apparatus for embedding watermarks |
US20050096918A1 (en) * | 2003-10-31 | 2005-05-05 | Arun Rao | Reduction of memory requirements by overlaying buffers |
JP4155575B2 (ja) * | 2004-03-31 | 2008-09-24 | 株式会社東芝 | 音声再生装置及び集積回路装置 |
KR101087588B1 (ko) | 2004-07-02 | 2011-11-29 | 닐슨 미디어 리서치 인코퍼레이티드 | 압축 디지털 비트스트림을 믹싱하는 방법 및 장치 |
EP2095560B1 (en) | 2006-10-11 | 2015-09-09 | The Nielsen Company (US), LLC | Methods and apparatus for embedding codes in compressed audio data streams |
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 |
CN101398825B (zh) * | 2007-09-29 | 2013-07-03 | 三星电子株式会社 | 用于快速音乐分类和检索的方法和设备 |
CN102216982A (zh) * | 2008-09-18 | 2011-10-12 | 韩国电子通信研究院 | 在基于修正离散余弦变换的译码器与异质译码器间转换的编码设备和解码设备 |
JP5635502B2 (ja) * | 2008-10-01 | 2014-12-03 | ジーブイビービー ホールディングス エス.エイ.アール.エル. | 復号装置、復号方法、符号化装置、符号化方法、及び編集装置 |
JP5163545B2 (ja) * | 2009-03-05 | 2013-03-13 | 富士通株式会社 | オーディオ復号装置及びオーディオ復号方法 |
JP5365363B2 (ja) * | 2009-06-23 | 2013-12-11 | ソニー株式会社 | 音響信号処理システム、音響信号復号装置、これらにおける処理方法およびプログラム |
TWI557723B (zh) | 2010-02-18 | 2016-11-11 | 杜比實驗室特許公司 | 解碼方法及系統 |
KR101756838B1 (ko) | 2010-10-13 | 2017-07-11 | 삼성전자주식회사 | 다채널 오디오 신호를 다운 믹스하는 방법 및 장치 |
EP3122072B1 (en) * | 2011-03-24 | 2020-09-23 | Oticon A/s | Audio processing device, system, use and method |
RU2718418C2 (ru) | 2015-11-09 | 2020-04-02 | Сони Корпорейшн | Устройство декодирования, способ декодирования и программа |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4092603A (en) * | 1976-09-16 | 1978-05-30 | Hughes Aircraft Company | System for obtaining pulse compression in the frequency domain |
US4369336A (en) * | 1979-11-26 | 1983-01-18 | Eventide Clockworks, Inc. | Method and apparatus for producing two complementary pitch signals without glitch |
US4291310A (en) * | 1979-12-31 | 1981-09-22 | International Telephone And Telegraph Corporation | Adaptive two-dimensional null forming receiving antenna system |
DE3109006A1 (de) * | 1981-03-10 | 1982-09-23 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren und schaltungsanordnung zum aufzeichnen und/oder wiedergeben von breitbandigen signalen |
US5164980A (en) * | 1990-02-21 | 1992-11-17 | Alkanox Corporation | Video telephone system |
US5347305A (en) * | 1990-02-21 | 1994-09-13 | Alkanox Corporation | Video telephone system |
US5561608A (en) * | 1992-11-18 | 1996-10-01 | Kabushiki Kaisha Toshiba | Multisystem adaptable type signal processing and recording/reproducing apparatus |
JP3093494B2 (ja) * | 1992-11-18 | 2000-10-03 | 株式会社東芝 | 多様性信号処理装置 |
-
1996
- 1996-09-27 US US08/722,948 patent/US5867819A/en not_active Expired - Lifetime
- 1996-09-28 CN CN96122821A patent/CN1130691C/zh not_active Expired - Lifetime
- 1996-09-28 CN CNB2003101013284A patent/CN1288849C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5867819A (en) | 1999-02-02 |
CN1130691C (zh) | 2003-12-10 |
CN1496007A (zh) | 2004-05-12 |
CN1154606A (zh) | 1997-07-16 |
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