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DE602005016571D1 - Mehrkanalige signal-dekodierung - Google Patents

Mehrkanalige signal-dekodierung

Info

Publication number
DE602005016571D1
DE602005016571D1 DE602005016571T DE602005016571T DE602005016571D1 DE 602005016571 D1 DE602005016571 D1 DE 602005016571D1 DE 602005016571 T DE602005016571 T DE 602005016571T DE 602005016571 T DE602005016571 T DE 602005016571T DE 602005016571 D1 DE602005016571 D1 DE 602005016571D1
Authority
DE
Germany
Prior art keywords
signal
channel signal
channel signals
reference channel
signal decoding
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.)
Active
Application number
DE602005016571T
Other languages
English (en)
Inventor
Michiyo Goto
Chun Woei Teo
Sua Hong Neo
Koji Yoshida
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.)
Panasonic Corp
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
Publication of DE602005016571D1 publication Critical patent/DE602005016571D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L19/04—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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/93—Discriminating between voiced and unvoiced parts of speech signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Circuits Of Receivers In General (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Selective Calling Equipment (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE602005016571T 2004-08-26 2005-08-24 Mehrkanalige signal-dekodierung Active DE602005016571D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004247404 2004-08-26
PCT/JP2005/015375 WO2006022308A1 (ja) 2004-08-26 2005-08-24 マルチチャネル信号符号化装置およびマルチチャネル信号復号装置

Publications (1)

Publication Number Publication Date
DE602005016571D1 true DE602005016571D1 (de) 2009-10-22

Family

ID=35967516

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005016571T Active DE602005016571D1 (de) 2004-08-26 2005-08-24 Mehrkanalige signal-dekodierung

Country Status (9)

Country Link
US (1) US7630396B2 (de)
EP (1) EP1783745B1 (de)
JP (1) JP4963962B2 (de)
KR (1) KR20070051864A (de)
CN (1) CN101010725A (de)
AT (1) ATE442644T1 (de)
BR (1) BRPI0514998A (de)
DE (1) DE602005016571D1 (de)
WO (1) WO2006022308A1 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69615826T2 (de) 1995-12-07 2002-04-04 Koninkl Philips Electronics Nv Verfahren und vorrichtung zur kodierung,übertragung und dekodierung eines nicht-pcm-bitstromes zwischen einer vorrichtung mit digitaler vielseitiger platte und einer mehrkanal-wiedergabevorrichtung
US7240001B2 (en) 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US7460990B2 (en) 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
EP1691348A1 (de) * 2005-02-14 2006-08-16 Ecole Polytechnique Federale De Lausanne Parametrische kombinierte Kodierung von Audio-Quellen
US8296134B2 (en) * 2005-05-13 2012-10-23 Panasonic Corporation Audio encoding apparatus and spectrum modifying method
US7562021B2 (en) 2005-07-15 2009-07-14 Microsoft Corporation Modification of codewords in dictionary used for efficient coding of digital media spectral data
US7630882B2 (en) 2005-07-15 2009-12-08 Microsoft Corporation Frequency segmentation to obtain bands for efficient coding of digital media
WO2007052612A1 (ja) * 2005-10-31 2007-05-10 Matsushita Electric Industrial Co., Ltd. ステレオ符号化装置およびステレオ信号予測方法
US20090018824A1 (en) * 2006-01-31 2009-01-15 Matsushita Electric Industrial Co., Ltd. Audio encoding device, audio decoding device, audio encoding system, audio encoding method, and audio decoding method
KR101393298B1 (ko) * 2006-07-08 2014-05-12 삼성전자주식회사 적응적 부호화/복호화 방법 및 장치
JP4776692B2 (ja) * 2006-09-25 2011-09-21 パナソニック株式会社 信号分離装置及び信号分離方法
JP2008089545A (ja) * 2006-10-05 2008-04-17 Matsushita Electric Ind Co Ltd 解析装置
US7761290B2 (en) 2007-06-15 2010-07-20 Microsoft Corporation Flexible frequency and time partitioning in perceptual transform coding of audio
CN101071570B (zh) * 2007-06-21 2011-02-16 北京中星微电子有限公司 耦合声道的编、解码处理方法、音频编码装置及解码装置
US8046214B2 (en) 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
EP2172929B1 (de) * 2007-06-27 2018-08-01 NEC Corporation Übertragunseinheit, system zur signalanalysesteuerung und verfahren dafür
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
WO2009057327A1 (ja) * 2007-10-31 2009-05-07 Panasonic Corporation 符号化装置および復号装置
EP2242046A4 (de) * 2008-01-11 2013-10-30 Nec Corp System, vorrichtung, verfahren und programm für signalanalysesteuerung, signalanalyse und signalsteuerung
CN101960514A (zh) * 2008-03-14 2011-01-26 日本电气株式会社 信号分析控制系统及其方法、信号控制装置及其方法和程序
WO2009131066A1 (ja) * 2008-04-21 2009-10-29 日本電気株式会社 信号分析制御及び信号制御のシステム、装置、方法及びプログラム
JP5141542B2 (ja) * 2008-12-24 2013-02-13 富士通株式会社 雑音検出装置及び雑音検出方法
TWI426736B (zh) * 2009-07-07 2014-02-11 Issc Technologies Corp 一種無線電語音資料傳輸系統之語音品質改善方法
US8868432B2 (en) * 2010-10-15 2014-10-21 Motorola Mobility Llc Audio signal bandwidth extension in CELP-based speech coder
EP2830051A3 (de) 2013-07-22 2015-03-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiocodierer, Audiodecodierer, Verfahren und Computerprogramm mit gemeinsamen codierten Restsignalen
US9685166B2 (en) 2014-07-26 2017-06-20 Huawei Technologies Co., Ltd. Classification between time-domain coding and frequency domain coding
CN114005454B (zh) * 2015-06-17 2025-03-11 三星电子株式会社 实现低复杂度格式转换的内部声道处理方法和装置
US10553222B2 (en) 2017-03-09 2020-02-04 Qualcomm Incorporated Inter-channel bandwidth extension spectral mapping and adjustment
CN107966698B (zh) * 2017-10-30 2021-12-28 四川九洲电器集团有限责任公司 二次雷达设备及信号处理方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2006487C (en) * 1988-12-23 1994-01-11 Kazunori Ozawa Communication system capable of improving a speech quality by effectively calculating excitation multipulses
JP3131249B2 (ja) * 1991-08-23 2001-01-31 日本放送協会 混合音声信号受信装置
JP3435674B2 (ja) 1994-05-06 2003-08-11 日本電信電話株式会社 信号の符号化方法と復号方法及びそれを使った符号器及び復号器
US5651090A (en) * 1994-05-06 1997-07-22 Nippon Telegraph And Telephone Corporation Coding method and coder for coding input signals of plural channels using vector quantization, and decoding method and decoder therefor
TW295747B (de) 1994-06-13 1997-01-11 Sony Co Ltd
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
US5774837A (en) * 1995-09-13 1998-06-30 Voxware, Inc. Speech coding system and method using voicing probability determination
US5812971A (en) 1996-03-22 1998-09-22 Lucent Technologies Inc. Enhanced joint stereo coding method using temporal envelope shaping
JP3099876B2 (ja) * 1997-02-05 2000-10-16 日本電信電話株式会社 多チャネル音声信号符号化方法及びその復号方法及びそれを使った符号化装置及び復号化装置
SE519985C2 (sv) * 2000-09-15 2003-05-06 Ericsson Telefon Ab L M Kodning och avkodning av signaler från flera kanaler
SE519981C2 (sv) * 2000-09-15 2003-05-06 Ericsson Telefon Ab L M Kodning och avkodning av signaler från flera kanaler
US7292901B2 (en) * 2002-06-24 2007-11-06 Agere Systems Inc. Hybrid multi-channel/cue coding/decoding of audio signals
DE60311794C5 (de) * 2002-04-22 2022-11-10 Koninklijke Philips N.V. Signalsynthese
EP1500083B1 (de) * 2002-04-22 2006-06-28 Koninklijke Philips Electronics N.V. Parametrische beschreibung von mehrkanal-audio
JP4714416B2 (ja) 2002-04-22 2011-06-29 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 空間的オーディオのパラメータ表示
US7155385B2 (en) * 2002-05-16 2006-12-26 Comerica Bank, As Administrative Agent Automatic gain control for adjusting gain during non-speech portions
KR20050049549A (ko) * 2002-10-14 2005-05-25 코닌클리케 필립스 일렉트로닉스 엔.브이. 신호 필터링

Also Published As

Publication number Publication date
JP4963962B2 (ja) 2012-06-27
WO2006022308A1 (ja) 2006-03-02
CN101010725A (zh) 2007-08-01
EP1783745A4 (de) 2008-05-21
EP1783745A1 (de) 2007-05-09
BRPI0514998A (pt) 2008-07-01
JPWO2006022308A1 (ja) 2008-05-08
EP1783745B1 (de) 2009-09-09
US20070233470A1 (en) 2007-10-04
ATE442644T1 (de) 2009-09-15
US7630396B2 (en) 2009-12-08
KR20070051864A (ko) 2007-05-18

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