GB2368761B - Speech codec and methods for generating a vector codebook and encoding/decoding speech signals - Google Patents

Speech codec and methods for generating a vector codebook and encoding/decoding speech signals

Info

Publication number
GB2368761B
GB2368761B GB0026463A GB0026463A GB2368761B GB 2368761 B GB2368761 B GB 2368761B GB 0026463 A GB0026463 A GB 0026463A GB 0026463 A GB0026463 A GB 0026463A GB 2368761 B GB2368761 B GB 2368761B
Authority
GB
United Kingdom
Prior art keywords
encoding
generating
methods
speech
vector codebook
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.)
Expired - Fee Related
Application number
GB0026463A
Other versions
GB2368761A (en
GB0026463D0 (en
Inventor
Jonathan Alastair Gibbs
James Malcolm Hoskin
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 Solutions 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 Solutions Inc filed Critical Motorola Solutions Inc
Priority to GB0026463A priority Critical patent/GB2368761B/en
Publication of GB0026463D0 publication Critical patent/GB0026463D0/en
Publication of GB2368761A publication Critical patent/GB2368761A/en
Application granted granted Critical
Publication of GB2368761B publication Critical patent/GB2368761B/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/06Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G10L19/07Line spectrum pair [LSP] vocoders
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L2019/0001Codebooks
    • G10L2019/0004Design or structure of the codebook
    • G10L2019/0005Multi-stage vector quantisation
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L2019/0001Codebooks
    • G10L2019/0007Codebook element generation
GB0026463A 2000-10-30 2000-10-30 Speech codec and methods for generating a vector codebook and encoding/decoding speech signals Expired - Fee Related GB2368761B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0026463A GB2368761B (en) 2000-10-30 2000-10-30 Speech codec and methods for generating a vector codebook and encoding/decoding speech signals

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB0026463A GB2368761B (en) 2000-10-30 2000-10-30 Speech codec and methods for generating a vector codebook and encoding/decoding speech signals
DE60113144T DE60113144T2 (en) 2000-10-30 2001-10-22 Speech codec and method for generating a vector codebook and for encoding / decoding of speech signals
EP01993000A EP1334485B1 (en) 2000-10-30 2001-10-22 Speech codec and method for generating a vector codebook and encoding/decoding speech signals
AT01993000T AT303647T (en) 2000-10-30 2001-10-22 Speech codec and method for generating a vector codebook and for encoding / decoding of speech signals
AU1597202A AU1597202A (en) 2000-10-30 2001-10-22 Speech codec and method for generating a vector codebook and encoding/decoding speech signals
PCT/EP2001/012403 WO2002037477A1 (en) 2000-10-30 2001-10-22 Speech codec and method for generating a vector codebook and encoding/decoding speech signals

Publications (3)

Publication Number Publication Date
GB0026463D0 GB0026463D0 (en) 2000-12-13
GB2368761A GB2368761A (en) 2002-05-08
GB2368761B true GB2368761B (en) 2003-07-16

Family

ID=9902177

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0026463A Expired - Fee Related GB2368761B (en) 2000-10-30 2000-10-30 Speech codec and methods for generating a vector codebook and encoding/decoding speech signals

Country Status (6)

Country Link
EP (1) EP1334485B1 (en)
AT (1) AT303647T (en)
AU (1) AU1597202A (en)
DE (1) DE60113144T2 (en)
GB (1) GB2368761B (en)
WO (1) WO2002037477A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0703795D0 (en) * 2007-02-27 2007-04-04 Sepura Ltd Speech encoding and decoding in communications systems

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411655A2 (en) * 1989-08-04 1991-02-06 Fujitsu Limited Vector quantization encoder and vector quantization decoder
WO1995010760A2 (en) * 1993-10-08 1995-04-20 Comsat Corporation Improved low bit rate vocoders and methods of operation therefor
GB2300548A (en) * 1995-05-02 1996-11-06 Motorola Ltd Vector quantization method for a communications system
WO1997027578A1 (en) * 1996-01-26 1997-07-31 Motorola Inc. Very low bit rate time domain speech analyzer for voice messaging
WO1999065017A1 (en) * 1998-06-09 1999-12-16 Matsushita Electric Industrial Co., Ltd. Speech coding apparatus and speech decoding apparatus
WO2002023527A1 (en) * 2000-09-15 2002-03-21 Telefonaktiebolaget Lm Ericsson Multi-channel signal encoding and decoding

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5621852A (en) * 1993-12-14 1997-04-15 Interdigital Technology Corporation Efficient codebook structure for code excited linear prediction coding
JP4132154B2 (en) * 1997-10-23 2008-08-13 ソニー株式会社 Speech synthesis method and apparatus, as well as bandwidth extension method and apparatus
US5966688A (en) * 1997-10-28 1999-10-12 Hughes Electronics Corporation Speech mode based multi-stage vector quantizer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411655A2 (en) * 1989-08-04 1991-02-06 Fujitsu Limited Vector quantization encoder and vector quantization decoder
WO1995010760A2 (en) * 1993-10-08 1995-04-20 Comsat Corporation Improved low bit rate vocoders and methods of operation therefor
GB2300548A (en) * 1995-05-02 1996-11-06 Motorola Ltd Vector quantization method for a communications system
WO1997027578A1 (en) * 1996-01-26 1997-07-31 Motorola Inc. Very low bit rate time domain speech analyzer for voice messaging
WO1999065017A1 (en) * 1998-06-09 1999-12-16 Matsushita Electric Industrial Co., Ltd. Speech coding apparatus and speech decoding apparatus
WO2002023527A1 (en) * 2000-09-15 2002-03-21 Telefonaktiebolaget Lm Ericsson Multi-channel signal encoding and decoding

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Int. Conf. Acoustics, Speech & Signal Processing (ICASSP-90) vol 1, pages 221-224 *

Also Published As

Publication number Publication date
EP1334485B1 (en) 2005-08-31
DE60113144T2 (en) 2006-06-14
GB2368761A (en) 2002-05-08
DE60113144D1 (en) 2005-10-06
EP1334485A1 (en) 2003-08-13
AT303647T (en) 2005-09-15
WO2002037477A1 (en) 2002-05-10
AU1597202A (en) 2002-05-15
GB0026463D0 (en) 2000-12-13

Similar Documents

Publication Publication Date Title
TW493161B (en) System of encoding and decoding speech signals
TWI321314B (en) Methods of encoding or decoding a highband portion of a speech signal,apparatus configured to decode a highband portion of a speech signal and highband speech decoder
GB2382040B (en) Scrubbing CO2 from methane-containing gases using an aqueous stream
EG21303A (en) Scalable audio coding/decoding method and apparatus
GB2364569B (en) Underwater detection apparatus
HK1090465A1 (en) Method and apparatus for the generation of vectorsfor speech decoding& x9;& x9;& x9;& x9;& x9;
IL155390D0 (en) Control of a personal transporter
EP1379964A4 (en) Method and system for transcoding video and speech signals
TWI305638B (en) Encoding device,decoding device and methods thereof
AU9586001A (en) Soft decision maximum likelihood encoder and decoder
AU3027001A (en) Method for encoding and decoding video information, a motion compensated video encoder and a corresponding decoder
IL125268D0 (en) Scalable stereo audio encoding/decoding method and apparatus
AU2377500A (en) Variable rate speech coding
AU8668901A (en) Word sense disambiguation
AU2002218916A1 (en) Hierarchical language models for speech recognition
AU1256702A (en) A method of making a composite abrasive compact
EP1438790A4 (en) Generating a dummy bidirectional predictive field picture
EP0747883A3 (en) Voiced/unvoiced classification of speech for use in speech decoding during frame erasures
PT2271108T (en) Moving picture coding method and moving picture decoding method
HK1152178A1 (en) Video encoding and decoding method
AU5897301A (en) Forward error correction in speech coding
PT2271111T (en) Moving picture coding method and moving picture decoding method
HK1044404A1 (en) Endpointing of speech in a noisy signal.
EG21510A (en) Scalable audio encoding/decoding method and apparatus
ZA200302468B (en) Apparatus for bandwidth expansion of a speech signal.

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20081030