ATE198384T1 - Verfahren zur kodierung, dekodierung und kompression von audiodaten - Google Patents

Verfahren zur kodierung, dekodierung und kompression von audiodaten

Info

Publication number
ATE198384T1
ATE198384T1 AT93903484T AT93903484T ATE198384T1 AT E198384 T1 ATE198384 T1 AT E198384T1 AT 93903484 T AT93903484 T AT 93903484T AT 93903484 T AT93903484 T AT 93903484T AT E198384 T1 ATE198384 T1 AT E198384T1
Authority
AT
Austria
Prior art keywords
signal
decoding
encoding
audio data
compressing audio
Prior art date
Application number
AT93903484T
Other languages
English (en)
Inventor
Jae S Lim
Original Assignee
Massachusetts Inst Technology
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
Priority claimed from US07/822,247 external-priority patent/US5394508A/en
Application filed by Massachusetts Inst Technology filed Critical Massachusetts Inst Technology
Application granted granted Critical
Publication of ATE198384T1 publication Critical patent/ATE198384T1/de

Links

Classifications

    • 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
    • H04B1/667—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 using a division in frequency subbands
    • 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
    • G10L19/0208—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
    • G10L19/02—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
    • G10L19/0212—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 orthogonal transformation
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02163—Only one microphone
    • 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
    • G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
AT93903484T 1992-01-17 1993-01-13 Verfahren zur kodierung, dekodierung und kompression von audiodaten ATE198384T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/822,247 US5394508A (en) 1992-01-17 1992-01-17 Method and apparatus for encoding decoding and compression of audio-type data
US07/879,635 US5369724A (en) 1992-01-17 1992-05-07 Method and apparatus for encoding, decoding and compression of audio-type data using reference coefficients located within a band of coefficients
PCT/US1993/000323 WO1993014492A1 (en) 1992-01-17 1993-01-13 Method and apparatus for encoding, decoding and compression of audio-type data

Publications (1)

Publication Number Publication Date
ATE198384T1 true ATE198384T1 (de) 2001-01-15

Family

ID=27124626

Family Applications (2)

Application Number Title Priority Date Filing Date
AT99117212T ATE291771T1 (de) 1992-01-17 1993-01-13 Verfahren zum kodieren und dekodieren von audiodaten
AT93903484T ATE198384T1 (de) 1992-01-17 1993-01-13 Verfahren zur kodierung, dekodierung und kompression von audiodaten

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT99117212T ATE291771T1 (de) 1992-01-17 1993-01-13 Verfahren zum kodieren und dekodieren von audiodaten

Country Status (7)

Country Link
US (2) US5369724A (de)
EP (2) EP0961414B1 (de)
AT (2) ATE291771T1 (de)
CA (1) CA2128216C (de)
DE (2) DE69329796T2 (de)
ES (2) ES2155449T3 (de)
WO (1) WO1993014492A1 (de)

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US5602961A (en) * 1994-05-31 1997-02-11 Alaris, Inc. Method and apparatus for speech compression using multi-mode code excited linear predictive coding
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FR2796190B1 (fr) * 1999-07-05 2002-05-03 Matra Nortel Communications Procede et dispositif de codage audio
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US6934677B2 (en) * 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US7240001B2 (en) 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
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US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
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KR101261524B1 (ko) * 2007-03-14 2013-05-06 삼성전자주식회사 노이즈를 포함하는 오디오 신호를 저비트율로부호화/복호화하는 방법 및 이를 위한 장치
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US8046214B2 (en) * 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
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US8249883B2 (en) 2007-10-26 2012-08-21 Microsoft Corporation Channel extension coding for multi-channel source
CN110634495B (zh) * 2013-09-16 2023-07-07 三星电子株式会社 信号编码方法和装置以及信号解码方法和装置
KR102315920B1 (ko) 2013-09-16 2021-10-21 삼성전자주식회사 신호 부호화방법 및 장치와 신호 복호화방법 및 장치
CN106233112B (zh) * 2014-02-17 2019-06-28 三星电子株式会社 信号编码方法和设备以及信号解码方法和设备
KR20170037970A (ko) 2014-07-28 2017-04-05 삼성전자주식회사 신호 부호화방법 및 장치와 신호 복호화방법 및 장치
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Also Published As

Publication number Publication date
US5369724A (en) 1994-11-29
ES2155449T3 (es) 2001-05-16
EP0628195B1 (de) 2000-12-27
EP0628195A4 (de) 1996-07-31
ATE291771T1 (de) 2005-04-15
EP0628195A1 (de) 1994-12-14
EP0961414A3 (de) 2000-08-30
DE69333786D1 (de) 2005-04-28
DE69333786T2 (de) 2006-03-30
EP0961414A2 (de) 1999-12-01
DE69329796D1 (de) 2001-02-01
CA2128216C (en) 2006-06-06
EP0961414B1 (de) 2005-03-23
ES2238798T3 (es) 2005-09-01
DE69329796T2 (de) 2001-08-02
WO1993014492A1 (en) 1993-07-22
US5640486A (en) 1997-06-17
CA2128216A1 (en) 1993-07-22

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