EP1204095A4 - Sound switching device - Google Patents

Sound switching device

Info

Publication number
EP1204095A4
EP1204095A4 EP00929812A EP00929812A EP1204095A4 EP 1204095 A4 EP1204095 A4 EP 1204095A4 EP 00929812 A EP00929812 A EP 00929812A EP 00929812 A EP00929812 A EP 00929812A EP 1204095 A4 EP1204095 A4 EP 1204095A4
Authority
EP
European Patent Office
Prior art keywords
switching device
sound switching
sound
switching
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.)
Withdrawn
Application number
EP00929812A
Other languages
German (de)
French (fr)
Other versions
EP1204095A1 (en
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
NEC Corp
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 NEC Corp filed Critical NEC Corp
Publication of EP1204095A1 publication Critical patent/EP1204095A1/en
Publication of EP1204095A4 publication Critical patent/EP1204095A4/en
Withdrawn legal-status Critical Current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)
EP00929812A 1999-06-11 2000-05-19 Sound switching device Withdrawn EP1204095A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP16466599 1999-06-11
JP11164665A JP2000352999A (en) 1999-06-11 1999-06-11 Audio switching device
PCT/JP2000/003230 WO2000077775A1 (en) 1999-06-11 2000-05-19 Sound switching device

Publications (2)

Publication Number Publication Date
EP1204095A1 EP1204095A1 (en) 2002-05-08
EP1204095A4 true EP1204095A4 (en) 2005-08-17

Family

ID=15797504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00929812A Withdrawn EP1204095A4 (en) 1999-06-11 2000-05-19 Sound switching device

Country Status (5)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000352999A (en) * 1999-06-11 2000-12-19 Nec Corp Audio switching device
JP4733939B2 (en) 2004-01-08 2011-07-27 パナソニック株式会社 Signal decoding apparatus and signal decoding method
EP1814106B1 (en) 2005-01-14 2009-09-16 Panasonic Corporation Audio switching device and audio switching method
WO2007000988A1 (en) 2005-06-29 2007-01-04 Matsushita Electric Industrial Co., Ltd. Scalable decoder and disappeared data interpolating method
JP4560015B2 (en) * 2005-07-29 2010-10-13 パナソニック株式会社 Decryption device
US7653533B2 (en) * 2005-10-24 2010-01-26 Lg Electronics Inc. Removing time delays in signal paths
JP2008244775A (en) * 2007-03-27 2008-10-09 Rohm Co Ltd Audio circuit, and electronic apparatus having the same
AU2011311659B2 (en) * 2010-10-06 2015-07-30 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing an audio signal and for providing a higher temporal granularity for a combined unified speech and audio codec (USAC)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2592810B2 (en) * 1986-09-30 1997-03-19 株式会社東芝 Sample rate conversion circuit
JP2600237B2 (en) * 1987-12-29 1997-04-16 ソニー株式会社 Sampling frequency conversion circuit
JPH0675586A (en) * 1992-07-08 1994-03-18 Seikosha Co Ltd Acoustic signal generating circuit
JPH0758709A (en) * 1993-08-09 1995-03-03 Canon Inc Sound communication equipment
JP3134817B2 (en) * 1997-07-11 2001-02-13 日本電気株式会社 Audio encoding / decoding device
JP2000352999A (en) * 1999-06-11 2000-12-19 Nec Corp Audio switching device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *

Also Published As

Publication number Publication date
EP1204095A1 (en) 2002-05-08
WO2000077775A1 (en) 2000-12-21
CA2376816A1 (en) 2000-12-21
AU4778900A (en) 2001-01-02
JP2000352999A (en) 2000-12-19
AU773996B2 (en) 2004-06-10

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 20050706

RIC1 Information provided on ipc code assigned before grant

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Effective date: 20060731