CN101563726A - 用于对音频信号进行代码转换的方法和设备 - Google Patents

用于对音频信号进行代码转换的方法和设备 Download PDF

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Publication number
CN101563726A
CN101563726A CNA2007800344873A CN200780034487A CN101563726A CN 101563726 A CN101563726 A CN 101563726A CN A2007800344873 A CNA2007800344873 A CN A2007800344873A CN 200780034487 A CN200780034487 A CN 200780034487A CN 101563726 A CN101563726 A CN 101563726A
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CN
China
Prior art keywords
parameter
parameter field
frame
transcoding
equipment
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CNA2007800344873A
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English (en)
Chinese (zh)
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彼得·杰克斯
斯文·科登
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Thomson Licensing SAS
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Thomson Licensing SAS
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Publication of CN101563726A publication Critical patent/CN101563726A/zh
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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
    • G10L19/02—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
    • 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
    • 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
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • 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
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (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)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CNA2007800344873A 2006-09-20 2007-09-06 用于对音频信号进行代码转换的方法和设备 Pending CN101563726A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06120969A EP1903559A1 (en) 2006-09-20 2006-09-20 Method and device for transcoding audio signals
EP06120969.8 2006-09-20

Publications (1)

Publication Number Publication Date
CN101563726A true CN101563726A (zh) 2009-10-21

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ID=37605771

Family Applications (1)

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CNA2007800344873A Pending CN101563726A (zh) 2006-09-20 2007-09-06 用于对音频信号进行代码转换的方法和设备

Country Status (10)

Country Link
US (1) US9093065B2 (https=)
EP (2) EP1903559A1 (https=)
JP (1) JP5324450B2 (https=)
KR (1) KR101341317B1 (https=)
CN (1) CN101563726A (https=)
BR (1) BRPI0718465A2 (https=)
CA (1) CA2662910C (https=)
TW (1) TWI423251B (https=)
WO (1) WO2008034723A1 (https=)
ZA (1) ZA200901367B (https=)

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WO2022179406A1 (zh) * 2021-02-26 2022-09-01 腾讯科技（深圳）有限公司 音频转码方法、装置、音频转码器、设备以及存储介质

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US8793738B2 (en) 1994-05-04 2014-07-29 Starsight Telecast Incorporated Television system with downloadable features
CH705207B1 (de) 2002-06-19 2012-11-30 Prospective Concepts Ag Pneumatisches Bauelement mit Knotenelementen.
CH704442B1 (de) 2005-12-23 2012-08-15 Prospective Concepts Ag Pneumatisches Bauelement.
US8161686B2 (en) 2005-12-23 2012-04-24 Prospective Concepts Ag Pneumatic structural element, and roof produced therefrom
DE102006051673A1 (de) * 2006-11-02 2008-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Nachbearbeiten von Spektralwerten und Encodierer und Decodierer für Audiosignale
EP2099027A1 (en) * 2008-03-05 2009-09-09 Deutsche Thomson OHG Method and apparatus for transforming between different filter bank domains
WO2010032992A2 (ko) * 2008-09-18 2010-03-25 한국전자통신연구원 Mdct기반의 코너와 이종의 코더간 변환에서의 인코딩 장치 및 디코딩 장치
CN101989429B (zh) * 2009-07-31 2012-02-01 华为技术有限公司 转码方法、装置、设备以及系统
EP2306456A1 (en) 2009-09-04 2011-04-06 Thomson Licensing Method for decoding an audio signal that has a base layer and an enhancement layer
US8509329B2 (en) * 2009-11-06 2013-08-13 Samsung Electronics Co., Ltd. Data receiving apparatus for receiving data frame using constellation mapping scheme and data transmission apparatus for transmitting the date frame
IN2015DN04001A (https=) * 2012-11-07 2015-10-02 Dolby Int Ab
US9749037B2 (en) * 2013-04-18 2017-08-29 Mitsubishi Electric Corporation Demultiplexing apparatus, multiplexing apparatus, and relay apparatus
CN105637584B (zh) 2013-09-12 2020-03-03 杜比国际公司 基于qmf的处理数据的时间对齐
TWI557724B (zh) 2013-09-27 2016-11-11 杜比實驗室特許公司 用於將 n 聲道音頻節目編碼之方法、用於恢復 n 聲道音頻節目的 m 個聲道之方法、被配置成將 n 聲道音頻節目編碼之音頻編碼器及被配置成執行 n 聲道音頻節目的恢復之解碼器
KR102632136B1 (ko) 2017-04-28 2024-01-31 디티에스, 인코포레이티드 오디오 코더 윈도우 사이즈 및 시간-주파수 변환
CN113689864B (zh) * 2021-10-27 2022-01-18 北京百瑞互联技术有限公司 一种音频数据处理方法、装置及存储介质

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CN1784716A (zh) * 2003-04-08 2006-06-07 日本电气株式会社 代码转换方法和设备

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US20040002855A1 (en) * 2002-03-12 2004-01-01 Dilithium Networks, Inc. Method for adaptive codebook pitch-lag computation in audio transcoders
CN1653521A (zh) * 2002-03-12 2005-08-10 迪里辛姆网络控股有限公司 用于音频代码转换中的自适应码本音调滞后计算的方法
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Publication number Priority date Publication date Assignee Title
WO2022179406A1 (zh) * 2021-02-26 2022-09-01 腾讯科技（深圳）有限公司 音频转码方法、装置、音频转码器、设备以及存储介质

Also Published As

Publication number Publication date
EP2064700A1 (en) 2009-06-03
US20090240507A1 (en) 2009-09-24
TWI423251B (zh) 2014-01-11
EP2064700B1 (en) 2012-09-05
ZA200901367B (en) 2010-05-26
WO2008034723A1 (en) 2008-03-27
EP1903559A1 (en) 2008-03-26
TW200816167A (en) 2008-04-01
CA2662910A1 (en) 2008-03-27
JP5324450B2 (ja) 2013-10-23
CA2662910C (en) 2015-12-15
KR20090055579A (ko) 2009-06-02
JP2010504544A (ja) 2010-02-12
KR101341317B1 (ko) 2013-12-12
US9093065B2 (en) 2015-07-28
BRPI0718465A2 (pt) 2013-12-03

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Application publication date: 20091021