GB2444757B - Code excited linear prediction speech coding - Google Patents

Code excited linear prediction speech coding

Info

Publication number
GB2444757B
GB2444757B GB0624860A GB0624860A GB2444757B GB 2444757 B GB2444757 B GB 2444757B GB 0624860 A GB0624860 A GB 0624860A GB 0624860 A GB0624860 A GB 0624860A GB 2444757 B GB2444757 B GB 2444757B
Authority
GB
United Kingdom
Prior art keywords
linear prediction
speech coding
excited linear
code excited
prediction 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.)
Active
Application number
GB0624860A
Other versions
GB2444757A (en
GB0624860D0 (en
Inventor
Jonathan Gibbs
Halil Fikretler
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Priority to GB0624860A priority Critical patent/GB2444757B/en
Publication of GB0624860D0 publication Critical patent/GB0624860D0/en
Priority to PCT/US2007/083608 priority patent/WO2008076534A2/en
Publication of GB2444757A publication Critical patent/GB2444757A/en
Application granted granted Critical
Publication of GB2444757B publication Critical patent/GB2444757B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • 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
    • G10L19/26—Pre-filtering or post-filtering

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
GB0624860A 2006-12-13 2006-12-13 Code excited linear prediction speech coding Active GB2444757B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0624860A GB2444757B (en) 2006-12-13 2006-12-13 Code excited linear prediction speech coding
PCT/US2007/083608 WO2008076534A2 (en) 2006-12-13 2007-11-05 Code excited linear prediction speech coding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0624860A GB2444757B (en) 2006-12-13 2006-12-13 Code excited linear prediction speech coding

Publications (3)

Publication Number Publication Date
GB0624860D0 GB0624860D0 (en) 2007-01-24
GB2444757A GB2444757A (en) 2008-06-18
GB2444757B true GB2444757B (en) 2009-04-22

Family

ID=37712051

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0624860A Active GB2444757B (en) 2006-12-13 2006-12-13 Code excited linear prediction speech coding

Country Status (2)

Country Link
GB (1) GB2444757B (en)
WO (1) WO2008076534A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103295578B (en) 2012-03-01 2016-05-18 华为技术有限公司 A kind of voice frequency signal processing method and device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002058052A1 (en) * 2001-01-19 2002-07-25 Koninklijke Philips Electronics N.V. Wideband signal transmission system
US20040111257A1 (en) * 2002-12-09 2004-06-10 Sung Jong Mo Transcoding apparatus and method between CELP-based codecs using bandwidth extension
US20040153313A1 (en) * 2001-05-11 2004-08-05 Roland Aubauer Method for enlarging the band width of a narrow-band filtered voice signal, especially a voice signal emitted by a telecommunication appliance
US6795805B1 (en) * 1998-10-27 2004-09-21 Voiceage Corporation Periodicity enhancement in decoding wideband signals
WO2004084182A1 (en) * 2003-03-15 2004-09-30 Mindspeed Technologies, Inc. Decomposition of voiced speech for celp speech coding
US20060282263A1 (en) * 2005-04-01 2006-12-14 Vos Koen B Systems, methods, and apparatus for highband time warping

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6795805B1 (en) * 1998-10-27 2004-09-21 Voiceage Corporation Periodicity enhancement in decoding wideband signals
WO2002058052A1 (en) * 2001-01-19 2002-07-25 Koninklijke Philips Electronics N.V. Wideband signal transmission system
US20040153313A1 (en) * 2001-05-11 2004-08-05 Roland Aubauer Method for enlarging the band width of a narrow-band filtered voice signal, especially a voice signal emitted by a telecommunication appliance
US20040111257A1 (en) * 2002-12-09 2004-06-10 Sung Jong Mo Transcoding apparatus and method between CELP-based codecs using bandwidth extension
WO2004084182A1 (en) * 2003-03-15 2004-09-30 Mindspeed Technologies, Inc. Decomposition of voiced speech for celp speech coding
US20060282263A1 (en) * 2005-04-01 2006-12-14 Vos Koen B Systems, methods, and apparatus for highband time warping

Also Published As

Publication number Publication date
GB2444757A (en) 2008-06-18
WO2008076534A3 (en) 2008-11-27
GB0624860D0 (en) 2007-01-24
WO2008076534A2 (en) 2008-06-26

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

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