AU2001266278A1 - A speech communication system and method for handling lost frames - Google Patents

A speech communication system and method for handling lost frames

Info

Publication number
AU2001266278A1
AU2001266278A1 AU2001266278A AU6627801A AU2001266278A1 AU 2001266278 A1 AU2001266278 A1 AU 2001266278A1 AU 2001266278 A AU2001266278 A AU 2001266278A AU 6627801 A AU6627801 A AU 6627801A AU 2001266278 A1 AU2001266278 A1 AU 2001266278A1
Authority
AU
Australia
Prior art keywords
frame
speech
lost
received
communication system
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
AU2001266278A
Inventor
Adil Benyassine
Eyal Shlomot
Huan-Yu Su
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.)
Conexant Systems LLC
Original Assignee
Conexant Systems LLC
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 Conexant Systems LLC filed Critical Conexant Systems LLC
Publication of AU2001266278A1 publication Critical patent/AU2001266278A1/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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • 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
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G10L19/07—Line spectrum pair [LSP] vocoders
    • 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
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/90—Pitch determination of speech signals
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0012—Smoothing of parameters of the decoder interpolation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Circuits Of Receivers In General (AREA)
  • Communication Control (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Radio Relay Systems (AREA)

Abstract

The invention relates to a method of reproducing decoded speech in a communication system comprising: receiving speech parameters including an adaptive codebook gain and a fixed codebook gain for each subframe on a frame-by-frame basis, making a periodical decision whether the speech is a periodic speech or a non-periodic speech using the received speech parameters, detecting whether a current frame of speech parameters is lost, making a decision (1000, 1030) whether the current lost frame is a first lost frame after a received frame or not a first lost frame after a received frame, setting (1004, 1008, 1010, 1020, 1022) a gain parameter for the current lost frame based on the periodical decision and on the decision whether the current lost frame is a first lost frame after a received frame or not a first lost frame after a received frame and using the gain parameter for the reproducing of the speech signal.
AU2001266278A 2000-07-14 2001-07-09 A speech communication system and method for handling lost frames Abandoned AU2001266278A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/617,191 2000-07-14
US09/617,191 US6636829B1 (en) 1999-09-22 2000-07-14 Speech communication system and method for handling lost frames
PCT/IB2001/001228 WO2002007061A2 (en) 2000-07-14 2001-07-09 A speech communication system and method for handling lost frames

Publications (1)

Publication Number Publication Date
AU2001266278A1 true AU2001266278A1 (en) 2002-01-30

Family

ID=24472632

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001266278A Abandoned AU2001266278A1 (en) 2000-07-14 2001-07-09 A speech communication system and method for handling lost frames

Country Status (10)

Country Link
US (1) US6636829B1 (en)
EP (4) EP2093756B1 (en)
JP (3) JP4137634B2 (en)
KR (3) KR20050061615A (en)
CN (3) CN1267891C (en)
AT (2) ATE427546T1 (en)
AU (1) AU2001266278A1 (en)
DE (2) DE60117144T2 (en)
ES (1) ES2325151T3 (en)
WO (1) WO2002007061A2 (en)

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KR20050061615A (en) 2005-06-22
EP1577881A3 (en) 2005-10-19
CN1722231A (en) 2006-01-18
ATE427546T1 (en) 2009-04-15
CN1516113A (en) 2004-07-28
CN1441950A (en) 2003-09-10
KR20040005970A (en) 2004-01-16
EP1363273A1 (en) 2003-11-19
CN1267891C (en) 2006-08-02
JP2006011464A (en) 2006-01-12
WO2002007061A3 (en) 2002-08-22
ES2325151T3 (en) 2009-08-27
JP2004504637A (en) 2004-02-12
US6636829B1 (en) 2003-10-21
JP2004206132A (en) 2004-07-22
DE60117144D1 (en) 2006-04-20
DE60117144T2 (en) 2006-10-19
WO2002007061A2 (en) 2002-01-24
ATE317571T1 (en) 2006-02-15
EP1363273B1 (en) 2009-04-01
EP1301891A2 (en) 2003-04-16
KR20030040358A (en) 2003-05-22
EP1577881A2 (en) 2005-09-21
KR100742443B1 (en) 2007-07-25
EP1301891B1 (en) 2006-02-08
EP2093756A1 (en) 2009-08-26
JP4222951B2 (en) 2009-02-12
EP2093756B1 (en) 2012-10-31
CN1212606C (en) 2005-07-27
DE60138226D1 (en) 2009-05-14
JP4137634B2 (en) 2008-08-20
KR100754085B1 (en) 2007-08-31

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