AU2001287970A1 - Short-term enhancement in celp speech coding - Google Patents

Short-term enhancement in celp speech coding

Info

Publication number
AU2001287970A1
AU2001287970A1 AU2001287970A AU8797001A AU2001287970A1 AU 2001287970 A1 AU2001287970 A1 AU 2001287970A1 AU 2001287970 A AU2001287970 A AU 2001287970A AU 8797001 A AU8797001 A AU 8797001A AU 2001287970 A1 AU2001287970 A1 AU 2001287970A1
Authority
AU
Australia
Prior art keywords
short
speech coding
celp speech
term enhancement
enhancement
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
AU2001287970A
Inventor
Yang Gao
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
Priority claimed from US09/771,293 external-priority patent/US6678651B2/en
Application filed by Conexant Systems LLC filed Critical Conexant Systems LLC
Publication of AU2001287970A1 publication Critical patent/AU2001287970A1/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
    • G10L19/08—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
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
    • 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/15—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being formant information

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)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
AU2001287970A 2000-09-15 2001-09-17 Short-term enhancement in celp speech coding Abandoned AU2001287970A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US23293900P 2000-09-15 2000-09-15
US60232939 2000-09-15
US09771293 2001-01-25
US09/771,293 US6678651B2 (en) 2000-09-15 2001-01-25 Short-term enhancement in CELP speech coding
PCT/IB2001/001730 WO2002023536A2 (en) 2000-09-15 2001-09-17 Formant emphasis in celp speech coding

Publications (1)

Publication Number Publication Date
AU2001287970A1 true AU2001287970A1 (en) 2002-03-26

Family

ID=26926473

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001287970A Abandoned AU2001287970A1 (en) 2000-09-15 2001-09-17 Short-term enhancement in celp speech coding

Country Status (2)

Country Link
AU (1) AU2001287970A1 (en)
WO (1) WO2002023536A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9728200B2 (en) 2013-01-29 2017-08-08 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for adaptive formant sharpening in linear prediction coding
US9620134B2 (en) 2013-10-10 2017-04-11 Qualcomm Incorporated Gain shape estimation for improved tracking of high-band temporal characteristics
US10083708B2 (en) 2013-10-11 2018-09-25 Qualcomm Incorporated Estimation of mixing factors to generate high-band excitation signal
US10614816B2 (en) 2013-10-11 2020-04-07 Qualcomm Incorporated Systems and methods of communicating redundant frame information
US9384746B2 (en) 2013-10-14 2016-07-05 Qualcomm Incorporated Systems and methods of energy-scaled signal processing
US10163447B2 (en) 2013-12-16 2018-12-25 Qualcomm Incorporated High-band signal modeling

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5265190A (en) * 1991-05-31 1993-11-23 Motorola, Inc. CELP vocoder with efficient adaptive codebook search
WO1994025959A1 (en) * 1993-04-29 1994-11-10 Unisearch Limited Use of an auditory model to improve quality or lower the bit rate of speech synthesis systems
KR100389895B1 (en) * 1996-05-25 2003-11-28 삼성전자주식회사 Method for encoding and decoding audio, and apparatus therefor

Also Published As

Publication number Publication date
WO2002023536A3 (en) 2002-06-13
WO2002023536A2 (en) 2002-03-21

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