CA2376816A1 - Speech switching apparatus - Google Patents

Speech switching apparatus Download PDF

Info

Publication number
CA2376816A1
CA2376816A1 CA002376816A CA2376816A CA2376816A1 CA 2376816 A1 CA2376816 A1 CA 2376816A1 CA 002376816 A CA002376816 A CA 002376816A CA 2376816 A CA2376816 A CA 2376816A CA 2376816 A1 CA2376816 A1 CA 2376816A1
Authority
CA
Canada
Prior art keywords
signal
circuit
signals
switching
speech
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.)
Abandoned
Application number
CA002376816A
Other languages
English (en)
French (fr)
Inventor
Toshiyuki Nomura
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.)
NEC Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2376816A1 publication Critical patent/CA2376816A1/en
Abandoned 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
    • G10L19/18—Vocoders using multiple modes
    • 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)
  • Analogue/Digital Conversion (AREA)
CA002376816A 1999-06-11 2000-05-19 Speech switching apparatus Abandoned CA2376816A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11164665A JP2000352999A (ja) 1999-06-11 1999-06-11 音声切替装置
JP11/164665 1999-06-11
PCT/JP2000/003230 WO2000077775A1 (fr) 1999-06-11 2000-05-19 Dispositif de commutation sonore

Publications (1)

Publication Number Publication Date
CA2376816A1 true CA2376816A1 (en) 2000-12-21

Family

ID=15797504

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002376816A Abandoned CA2376816A1 (en) 1999-06-11 2000-05-19 Speech switching apparatus

Country Status (5)

Country Link
EP (1) EP1204095A4 (de)
JP (1) JP2000352999A (de)
AU (1) AU773996B2 (de)
CA (1) CA2376816A1 (de)
WO (1) WO2000077775A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU773996B2 (en) * 1999-06-11 2004-06-10 Nec Corporation Sound switching device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4733939B2 (ja) 2004-01-08 2011-07-27 パナソニック株式会社 信号復号化装置及び信号復号化方法
EP2107557A3 (de) 2005-01-14 2010-08-25 Panasonic Corporation Audioumschaltungsvorrichtung und Audioumschaltungsverfahren
JP5100380B2 (ja) 2005-06-29 2012-12-19 パナソニック株式会社 スケーラブル復号装置および消失データ補間方法
JP4560015B2 (ja) * 2005-07-29 2010-10-13 パナソニック株式会社 復号化装置
US7742913B2 (en) * 2005-10-24 2010-06-22 Lg Electronics Inc. Removing time delays in signal paths
JP2008244775A (ja) * 2007-03-27 2008-10-09 Rohm Co Ltd オーディオ回路およびそれを備える電子機器
ES2530957T3 (es) * 2010-10-06 2015-03-09 Fraunhofer Ges Forschung Aparato y método para procesar una señal de audio y para proporcionar una mayor granularidad temporal para un códec de voz y de audio unificado combinado (USAC)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2592810B2 (ja) * 1986-09-30 1997-03-19 株式会社東芝 サンプルレート変換回路
JP2600237B2 (ja) * 1987-12-29 1997-04-16 ソニー株式会社 サンプリング周波数変換回路
JPH0675586A (ja) * 1992-07-08 1994-03-18 Seikosha Co Ltd 音響信号発生回路
JPH0758709A (ja) * 1993-08-09 1995-03-03 Canon Inc 音響通信装置
JP3134817B2 (ja) * 1997-07-11 2001-02-13 日本電気株式会社 音声符号化復号装置
JP2000352999A (ja) * 1999-06-11 2000-12-19 Nec Corp 音声切替装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU773996B2 (en) * 1999-06-11 2004-06-10 Nec Corporation Sound switching device

Also Published As

Publication number Publication date
AU4778900A (en) 2001-01-02
WO2000077775A1 (fr) 2000-12-21
EP1204095A4 (de) 2005-08-17
JP2000352999A (ja) 2000-12-19
EP1204095A1 (de) 2002-05-08
AU773996B2 (en) 2004-06-10

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued