JP4731775B2 - スーパーフレーム構造のｌｐｃハーモニックボコーダ - Google Patents

スーパーフレーム構造のｌｐｃハーモニックボコーダ Download PDF

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Publication number
JP4731775B2
JP4731775B2 JP2001525687A JP2001525687A JP4731775B2 JP 4731775 B2 JP4731775 B2 JP 4731775B2 JP 2001525687 A JP2001525687 A JP 2001525687A JP 2001525687 A JP2001525687 A JP 2001525687A JP 4731775 B2 JP4731775 B2 JP 4731775B2
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frame
superframe
speech
pitch
audio
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JP2003510644A5 (enExample
JP2003510644A (ja
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ゲルショウ アレン
カパマン ウラジミール
ワン ティアン
コイシダ カズヒト
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Microsoft Corp
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    • 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
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • 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
    • G10L19/087—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using mixed excitation models, e.g. MELP, MBE, split band LPC or HVXC

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  • 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)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Record Information Processing For Printing (AREA)
  • Incineration Of Waste (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Electroluminescent Light Sources (AREA)
JP2001525687A 1999-09-22 2000-09-20 スーパーフレーム構造のｌｐｃハーモニックボコーダ Expired - Fee Related JP4731775B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/401,068 1999-09-22
US09/401,068 US7315815B1 (en) 1999-09-22 1999-09-22 LPC-harmonic vocoder with superframe structure
PCT/US2000/025869 WO2001022403A1 (en) 1999-09-22 2000-09-20 Lpc-harmonic vocoder with superframe structure

Related Child Applications (1)

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JP2011038935A Division JP5343098B2 (ja) 1999-09-22 2011-02-24 スーパーフレーム構造のｌｐｃハーモニックボコーダ

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JP2003510644A JP2003510644A (ja) 2003-03-18
JP2003510644A5 JP2003510644A5 (enExample) 2008-05-29
JP4731775B2 true JP4731775B2 (ja) 2011-07-27

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JP2011038935A Expired - Fee Related JP5343098B2 (ja) 1999-09-22 2011-02-24 スーパーフレーム構造のｌｐｃハーモニックボコーダ

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US (2) US7315815B1 (enExample)
EP (1) EP1222659B1 (enExample)
JP (2) JP4731775B2 (enExample)
AT (1) ATE310304T1 (enExample)
AU (1) AU7830300A (enExample)
DE (1) DE60024123T2 (enExample)
DK (1) DK1222659T3 (enExample)
ES (1) ES2250197T3 (enExample)
WO (1) WO2001022403A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
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US10242682B2 (en) 2013-07-22 2019-03-26 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Frequency-domain audio coding supporting transform length switching

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US11862182B2 (en) 2013-07-22 2024-01-02 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Frequency-domain audio coding supporting transform length switching
US12488804B2 (en) 2013-07-22 2025-12-02 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Frequency-domain audio coding supporting transform length switching

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DE60024123T2 (de) 2006-03-30
EP1222659B1 (en) 2005-11-16
AU7830300A (en) 2001-04-24
US20050075869A1 (en) 2005-04-07
ES2250197T3 (es) 2006-04-16
US7286982B2 (en) 2007-10-23
WO2001022403A1 (en) 2001-03-29
JP2011150357A (ja) 2011-08-04
US7315815B1 (en) 2008-01-01
DE60024123D1 (de) 2005-12-22
DK1222659T3 (da) 2006-03-27
ATE310304T1 (de) 2005-12-15
EP1222659A1 (en) 2002-07-17
JP5343098B2 (ja) 2013-11-13
JP2003510644A (ja) 2003-03-18

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