JP4193243B2 - 音響信号符号化方法及び装置、音響信号復号化方法及び装置並びに記録媒体 - Google Patents

音響信号符号化方法及び装置、音響信号復号化方法及び装置並びに記録媒体 Download PDF

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JP4193243B2
JP4193243B2 JP28562498A JP28562498A JP4193243B2 JP 4193243 B2 JP4193243 B2 JP 4193243B2 JP 28562498 A JP28562498 A JP 28562498A JP 28562498 A JP28562498 A JP 28562498A JP 4193243 B2 JP4193243 B2 JP 4193243B2
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amplitude
signal
time
series signal
amplitude operation
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JP2000114975A (ja
JP2000114975A5 (https=
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志朗 鈴木
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Sony Corp
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Sony Corp
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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
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
JP28562498A 1998-10-07 1998-10-07 音響信号符号化方法及び装置、音響信号復号化方法及び装置並びに記録媒体 Expired - Fee Related JP4193243B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP28562498A JP4193243B2 (ja) 1998-10-07 1998-10-07 音響信号符号化方法及び装置、音響信号復号化方法及び装置並びに記録媒体
US09/412,556 US7580893B1 (en) 1998-10-07 1999-10-05 Acoustic signal coding method and apparatus, acoustic signal decoding method and apparatus, and acoustic signal recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28562498A JP4193243B2 (ja) 1998-10-07 1998-10-07 音響信号符号化方法及び装置、音響信号復号化方法及び装置並びに記録媒体

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JP2000114975A JP2000114975A (ja) 2000-04-21
JP2000114975A5 JP2000114975A5 (https=) 2005-11-10
JP4193243B2 true JP4193243B2 (ja) 2008-12-10

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JP (1) JP4193243B2 (https=)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4508490B2 (ja) * 2000-09-11 2010-07-21 パナソニック株式会社 符号化装置および復号化装置
JP4548444B2 (ja) * 2000-12-14 2010-09-22 ソニー株式会社 符号化装置および方法、復号装置および方法、並びに記録媒体
WO2002103683A1 (en) * 2001-06-15 2002-12-27 Sony Corporation Encoding apparatus and encoding method
JP2003110429A (ja) * 2001-09-28 2003-04-11 Sony Corp 符号化方法及び装置、復号方法及び装置、伝送方法及び装置、並びに記録媒体
DE60202881T2 (de) * 2001-11-29 2006-01-19 Coding Technologies Ab Wiederherstellung von hochfrequenzkomponenten
JP4626261B2 (ja) * 2004-10-21 2011-02-02 カシオ計算機株式会社 音声符号化装置及び音声符号化方法
JP4899359B2 (ja) * 2005-07-11 2012-03-21 ソニー株式会社 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体
JP4876574B2 (ja) * 2005-12-26 2012-02-15 ソニー株式会社 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体
US8606566B2 (en) * 2007-10-24 2013-12-10 Qnx Software Systems Limited Speech enhancement through partial speech reconstruction
US8326617B2 (en) 2007-10-24 2012-12-04 Qnx Software Systems Limited Speech enhancement with minimum gating
US8015002B2 (en) 2007-10-24 2011-09-06 Qnx Software Systems Co. Dynamic noise reduction using linear model fitting
CN102208188B (zh) 2011-07-13 2013-04-17 华为技术有限公司 音频信号编解码方法和设备

Family Cites Families (16)

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US5095392A (en) * 1988-01-27 1992-03-10 Matsushita Electric Industrial Co., Ltd. Digital signal magnetic recording/reproducing apparatus using multi-level QAM modulation and maximum likelihood decoding
DE3925663A1 (de) * 1989-08-03 1991-02-07 Thomson Brandt Gmbh Digitales signalverarbeitungssystem
US5687281A (en) * 1990-10-23 1997-11-11 Koninklijke Ptt Nederland N.V. Bark amplitude component coder for a sampled analog signal and decoder for the coded signal
US6400996B1 (en) * 1999-02-01 2002-06-04 Steven M. Hoffberg Adaptive pattern recognition based control system and method
JP3123286B2 (ja) * 1993-02-18 2001-01-09 ソニー株式会社 ディジタル信号処理装置又は方法、及び記録媒体
US6681029B1 (en) * 1993-11-18 2004-01-20 Digimarc Corporation Decoding steganographic messages embedded in media signals
US7171016B1 (en) * 1993-11-18 2007-01-30 Digimarc Corporation Method for monitoring internet dissemination of image, video and/or audio files
US5731767A (en) * 1994-02-04 1998-03-24 Sony Corporation Information encoding method and apparatus, information decoding method and apparatus, information recording medium, and information transmission method
TW295747B (https=) * 1994-06-13 1997-01-11 Sony Co Ltd
US5654952A (en) * 1994-10-28 1997-08-05 Sony Corporation Digital signal encoding method and apparatus and recording medium
JPH08190764A (ja) * 1995-01-05 1996-07-23 Sony Corp ディジタル信号処理方法、ディジタル信号処理装置及び記録媒体
JPH08223049A (ja) * 1995-02-14 1996-08-30 Sony Corp 信号符号化方法及び装置、信号復号化方法及び装置、情報記録媒体並びに情報伝送方法
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
JP4326031B2 (ja) * 1997-02-06 2009-09-02 ソニー株式会社 帯域合成フィルタバンク及びフィルタリング方法並びに復号化装置
US6064954A (en) * 1997-04-03 2000-05-16 International Business Machines Corp. Digital audio signal coding
SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion

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US7580893B1 (en) 2009-08-25

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