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DE60121405D1 - Transkodierer zur Vermeidung einer Kaskadenkodierung von Sprachsignalen - Google Patents

Transkodierer zur Vermeidung einer Kaskadenkodierung von Sprachsignalen

Info

Publication number
DE60121405D1
DE60121405D1 DE60121405T DE60121405T DE60121405D1 DE 60121405 D1 DE60121405 D1 DE 60121405D1 DE 60121405 T DE60121405 T DE 60121405T DE 60121405 T DE60121405 T DE 60121405T DE 60121405 D1 DE60121405 D1 DE 60121405D1
Authority
DE
Germany
Prior art keywords
transcoder
speech signals
cascade coding
avoid
avoid cascade
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
DE60121405T
Other languages
English (en)
Other versions
DE60121405T2 (de
Inventor
Masano Suzuki
Yasuji Ota
Yoshiteru Tsuchinaga
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE60121405D1 publication Critical patent/DE60121405D1/de
Application granted granted Critical
Publication of DE60121405T2 publication Critical patent/DE60121405T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10L19/04—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
    • 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
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE60121405T 2000-10-30 2001-03-26 Transkodierer zur Vermeidung einer Kaskadenkodierung von Sprachsignalen Expired - Lifetime DE60121405T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2000033108 2000-10-30
JP2000330108 2000-10-30
JP2001075427A JP2002202799A (ja) 2000-10-30 2001-03-16 音声符号変換装置
JP2001075427 2001-03-16

Publications (2)

Publication Number Publication Date
DE60121405D1 true DE60121405D1 (de) 2006-08-24
DE60121405T2 DE60121405T2 (de) 2007-02-01

Family

ID=26603011

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60121405T Expired - Lifetime DE60121405T2 (de) 2000-10-30 2001-03-26 Transkodierer zur Vermeidung einer Kaskadenkodierung von Sprachsignalen

Country Status (4)

Country Link
US (2) US7016831B2 (de)
EP (1) EP1202251B1 (de)
JP (1) JP2002202799A (de)
DE (1) DE60121405T2 (de)

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Also Published As

Publication number Publication date
EP1202251B1 (de) 2006-07-12
US20020077812A1 (en) 2002-06-20
EP1202251A2 (de) 2002-05-02
DE60121405T2 (de) 2007-02-01
US7222069B2 (en) 2007-05-22
US7016831B2 (en) 2006-03-21
JP2002202799A (ja) 2002-07-19
US20060074644A1 (en) 2006-04-06
EP1202251A3 (de) 2003-09-10

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