DE3576444D1 - Sprachkodierung im frequenzbereich. - Google Patents

Sprachkodierung im frequenzbereich.

Info

Publication number
DE3576444D1
DE3576444D1 DE8585306015T DE3576444T DE3576444D1 DE 3576444 D1 DE3576444 D1 DE 3576444D1 DE 8585306015 T DE8585306015 T DE 8585306015T DE 3576444 T DE3576444 T DE 3576444T DE 3576444 D1 DE3576444 D1 DE 3576444D1
Authority
DE
Germany
Prior art keywords
frequency range
speech coding
bits
channels
coder
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.)
Expired - Lifetime
Application number
DE8585306015T
Other languages
English (en)
Inventor
Soo Ngee Koh
Costas S University Of Xydeas
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Application granted granted Critical
Publication of DE3576444D1 publication Critical patent/DE3576444D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/66Details 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
    • H04B1/667Details 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
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/032Quantisation or dequantisation of spectral components
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/0204Speech 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Analogue/Digital Conversion (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
DE8585306015T 1984-08-24 1985-08-23 Sprachkodierung im frequenzbereich. Expired - Lifetime DE3576444D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848421498A GB8421498D0 (en) 1984-08-24 1984-08-24 Frequency domain speech coding

Publications (1)

Publication Number Publication Date
DE3576444D1 true DE3576444D1 (de) 1990-04-12

Family

ID=10565770

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585306015T Expired - Lifetime DE3576444D1 (de) 1984-08-24 1985-08-23 Sprachkodierung im frequenzbereich.

Country Status (7)

Country Link
US (1) US4949383A (de)
EP (1) EP0176243B1 (de)
JP (1) JPS61112433A (de)
AT (1) ATE50896T1 (de)
CA (1) CA1248234A (de)
DE (1) DE3576444D1 (de)
GB (1) GB8421498D0 (de)

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DE69429917T2 (de) * 1994-02-17 2002-07-18 Motorola Inc Verfahren und vorrichtung zur gruppenkodierung von signalen
JP3186412B2 (ja) * 1994-04-01 2001-07-11 ソニー株式会社 情報符号化方法、情報復号化方法、及び情報伝送方法
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
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CN103548080B (zh) * 2012-05-11 2017-03-08 松下电器产业株式会社 声音信号混合编码器、声音信号混合解码器、声音信号编码方法以及声音信号解码方法
CN106941004B (zh) * 2012-07-13 2021-05-18 华为技术有限公司 音频信号的比特分配的方法和装置
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Also Published As

Publication number Publication date
EP0176243A2 (de) 1986-04-02
US4949383A (en) 1990-08-14
EP0176243A3 (en) 1986-12-30
CA1248234A (en) 1989-01-03
EP0176243B1 (de) 1990-03-07
ATE50896T1 (de) 1990-03-15
JPH0525408B2 (de) 1993-04-12
JPS61112433A (ja) 1986-05-30
GB8421498D0 (en) 1984-09-26

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Legal Events

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