GB2444757B - Code excited linear prediction speech coding - Google Patents

Code excited linear prediction speech coding

Info

Publication number: GB2444757B
Authority: GB; United Kingdom
Prior art keywords: linear prediction; speech coding; excited linear; code excited; prediction speech
Prior art date: 2006-12-13
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

GB0624860D0 (en

GB2444757A (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.)

2006-12-13

Filing date

2006-12-13

Publication date

2009-04-22

2006-12-13 Application filed by Motorola Inc filed Critical Motorola Inc

2006-12-13 Priority to GB0624860A priority Critical patent/GB2444757B/en

2007-01-24 Publication of GB0624860D0 publication Critical patent/GB0624860D0/en

2007-11-05 Priority to PCT/US2007/083608 priority patent/WO2008076534A2/en

2008-06-18 Publication of GB2444757A publication Critical patent/GB2444757A/en

2009-04-22 Application granted granted Critical

2009-04-22 Publication of GB2444757B publication Critical patent/GB2444757B/en

Status Active legal-status Critical Current

2026-12-13 Anticipated expiration legal-status Critical

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
- 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
- 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

2006
- 2006-12-13 GB GB0624860A patent/GB2444757B/en active Active
2007
- 2007-11-05 WO PCT/US2007/083608 patent/WO2008076534A2/en active Application Filing

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

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EP1970673A4 (en)	2010-08-04	Encoder
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GB0511639D0 (en)	2005-07-13	Prediction method
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GB2444757B (en)	2009-04-22	Code excited linear prediction speech coding

Legal Events

Date	Code	Title	Description
2011-02-23	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)	Free format text: REGISTERED BETWEEN 20110127 AND 20110202
2017-09-27	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)	Free format text: REGISTERED BETWEEN 20170831 AND 20170906