ATE442644T1 - Mehrkanalige signal-dekodierung - Google Patents

Mehrkanalige signal-dekodierung

Info

Publication number
ATE442644T1
ATE442644T1 AT05774594T AT05774594T ATE442644T1 AT E442644 T1 ATE442644 T1 AT E442644T1 AT 05774594 T AT05774594 T AT 05774594T AT 05774594 T AT05774594 T AT 05774594T AT E442644 T1 ATE442644 T1 AT E442644T1
Authority
AT
Austria
Prior art keywords
signal
channel signal
channel signals
reference channel
signal decoding
Prior art date
Application number
AT05774594T
Other languages
English (en)
Inventor
Michiyo Goto
Chun Woei Teo
Sua Hong Neo
Koji Yoshida
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
Application granted granted Critical
Publication of ATE442644T1 publication Critical patent/ATE442644T1/de

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)
  • Selective Calling Equipment (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Circuits Of Receivers In General (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
AT05774594T 2004-08-26 2005-08-24 Mehrkanalige signal-dekodierung ATE442644T1 (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
ATE442644T1 true ATE442644T1 (de) 2009-09-15

Family

ID=35967516

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05774594T ATE442644T1 (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)

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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
EP1881487B1 (de) * 2005-05-13 2009-11-25 Panasonic Corporation Audiocodierungsvorrichtung und spektrum-modifikationsverfahren
US7630882B2 (en) 2005-07-15 2009-12-08 Microsoft Corporation Frequency segmentation to obtain bands for efficient coding of digital media
US7562021B2 (en) 2005-07-15 2009-07-14 Microsoft Corporation Modification of codewords in dictionary used for efficient coding of digital media spectral data
US8112286B2 (en) * 2005-10-31 2012-02-07 Panasonic Corporation Stereo encoding device, and stereo signal predicting method
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
US8374883B2 (en) * 2007-10-31 2013-02-12 Panasonic Corporation Encoder and decoder using inter channel prediction based on optimally determined signals
US20100283536A1 (en) * 2008-01-11 2010-11-11 Nec Corporation System, apparatus, method and program for signal analysis control, signal analysis and signal control
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
EP3285257A4 (de) * 2015-06-17 2018-03-07 Samsung Electronics Co., Ltd. Verfahren und vorrichtung zur verarbeitung interner kanäle zur umwandlung eines formats mit geringer komplexität
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

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JP3131249B2 (ja) 1991-08-23 2001-01-31 日本放送協会 混合音声信号受信装置
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Also Published As

Publication number Publication date
EP1783745A4 (de) 2008-05-21
KR20070051864A (ko) 2007-05-18
WO2006022308A1 (ja) 2006-03-02
CN101010725A (zh) 2007-08-01
US20070233470A1 (en) 2007-10-04
EP1783745B1 (de) 2009-09-09
BRPI0514998A (pt) 2008-07-01
DE602005016571D1 (de) 2009-10-22
EP1783745A1 (de) 2007-05-09
JPWO2006022308A1 (ja) 2008-05-08
JP4963962B2 (ja) 2012-06-27
US7630396B2 (en) 2009-12-08

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