[go: up one dir, main page]

EP1132894A3 - Vector quantisation codebook generation method - Google Patents

Vector quantisation codebook generation method Download PDF

Info

Publication number
EP1132894A3
EP1132894A3 EP01108523A EP01108523A EP1132894A3 EP 1132894 A3 EP1132894 A3 EP 1132894A3 EP 01108523 A EP01108523 A EP 01108523A EP 01108523 A EP01108523 A EP 01108523A EP 1132894 A3 EP1132894 A3 EP 1132894A3
Authority
EP
European Patent Office
Prior art keywords
vectors
generation method
vector
codebook generation
vector quantisation
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.)
Granted
Application number
EP01108523A
Other languages
German (de)
French (fr)
Other versions
EP1132894B1 (en
EP1132894A2 (en
Inventor
Kazutoshi Yasunaga
Toshiyuki Morii
Taisuke Watanabe
Hiroyuki Ehara
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 JP29473896A external-priority patent/JP4003240B2/en
Priority claimed from JP31032496A external-priority patent/JP4006770B2/en
Priority claimed from JP03458397A external-priority patent/JP3700310B2/en
Priority claimed from JP03458297A external-priority patent/JP3174742B2/en
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority claimed from EP97911460A external-priority patent/EP0883107B9/en
Publication of EP1132894A2 publication Critical patent/EP1132894A2/en
Publication of EP1132894A3 publication Critical patent/EP1132894A3/en
Application granted granted Critical
Publication of EP1132894B1 publication Critical patent/EP1132894B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G10L19/135—Vector sum excited linear prediction [VSELP]

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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

In a CELP type speech coder, the excitation is quantized by vectors from a random codebook. The random codebook is made of a fixed waveform storage section (181), followed by a vector rearranging unit (182). The rearranging section (182) shifts the vectors to positions determined to minimize the quantization distorsion using a pulse placement methodology of an algebraic coder. The vectors are then summed (183) to generate the excitation code vector.
EP01108523A 1996-11-07 1997-11-06 Vector quantisation codebook generation method Expired - Lifetime EP1132894B1 (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP29473896A JP4003240B2 (en) 1996-11-07 1996-11-07 Speech coding apparatus and speech decoding apparatus
JP29473896 1996-11-07
JP31032496A JP4006770B2 (en) 1996-11-21 1996-11-21 Noise estimation device, noise reduction device, noise estimation method, and noise reduction method
JP31032496 1996-11-21
JP3458297 1997-02-19
JP3458397 1997-02-19
JP03458397A JP3700310B2 (en) 1997-02-19 1997-02-19 Vector quantization apparatus and vector quantization method
JP03458297A JP3174742B2 (en) 1997-02-19 1997-02-19 CELP-type speech decoding apparatus and CELP-type speech decoding method
EP97911460A EP0883107B9 (en) 1996-11-07 1997-11-06 Sound source vector generator, voice encoder, and voice decoder

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP97911460A Division EP0883107B9 (en) 1996-11-07 1997-11-06 Sound source vector generator, voice encoder, and voice decoder

Publications (3)

Publication Number Publication Date
EP1132894A2 EP1132894A2 (en) 2001-09-12
EP1132894A3 true EP1132894A3 (en) 2001-09-19
EP1132894B1 EP1132894B1 (en) 2003-05-02

Family

ID=27514441

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00121467A Expired - Lifetime EP1071082B1 (en) 1996-11-07 1997-11-06 Vector quantization codebook generation method and generator
EP01108523A Expired - Lifetime EP1132894B1 (en) 1996-11-07 1997-11-06 Vector quantisation codebook generation method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP00121467A Expired - Lifetime EP1071082B1 (en) 1996-11-07 1997-11-06 Vector quantization codebook generation method and generator

Country Status (1)

Country Link
EP (2) EP1071082B1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5293449A (en) * 1990-11-23 1994-03-08 Comsat Corporation Analysis-by-synthesis 2,4 kbps linear predictive speech codec
JP2956473B2 (en) * 1994-04-21 1999-10-04 日本電気株式会社 Vector quantizer

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
KIM S J ET AL: "A COMPLEXITY REDUCTION METHOD FOR VSELP CODING USING OVERLAPPED SPARSE BASIS VECTORS", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING APPLICATIONS AND TECHNOLOGY, 18 October 1994 (1994-10-18), XP000866009 *
SALAMI R ET AL: "REAL-TIME IMPLEMENTATION OF A 9.6 KBIT/S ACELP WIDEBAND SPEECH CODER", PROCEEDINGS OF THE GLOBAL TELECOMMUNICATIONS CONFERENCE (GLOBECOM),US,NEW YORK, IEEE, vol. -, 6 December 1992 (1992-12-06), pages 447 - 451, XP000357827, ISBN: 0-7803-0608-2 *

Also Published As

Publication number Publication date
EP1071082A2 (en) 2001-01-24
EP1071082A3 (en) 2001-01-31
EP1071082B1 (en) 2002-05-08
EP1132894B1 (en) 2003-05-02
EP1132894A2 (en) 2001-09-12

Similar Documents

Publication Publication Date Title
EP0991054A3 (en) Vector quantisation codebook generation method
EP2154679A3 (en) Method and apparatus for speech coding
EP0815554B1 (en) Analysis-by-synthesis linear predictive speech coder
EP0770989A3 (en) Speech encoding method and apparatus
EP1755227A3 (en) Multistage vector quantization for speech encoding
EP0751496A3 (en) Speech coding method and apparatus for the same
JPS6413199A (en) Inprovement in method for compression of speed digitally coded speech or audio signal
EP0766232A3 (en) Speech coding apparatus
EP0926660A3 (en) Speech encoding/decoding method
RU97117357A (en) SPEECH CODER WITH LINEAR PREDICTION AND USE OF ANALYSIS THROUGH SYNTHESIS
EP0802524A3 (en) Speech coder
CA2044750A1 (en) Speech coding and decoding system
HK1045396A1 (en) Method and apparatus for interleaving line spectral information quantization methods in a speech coder.
MY112330A (en) Method and apparatus for generating and encoding line spectral square roots
EP0834863A3 (en) Speech coder at low bit rates
EP0865027A3 (en) Method for coding the random component vector in an ACELP coder
CA2090205A1 (en) Speech coding system
EP1132894A3 (en) Vector quantisation codebook generation method
TW371749B (en) Improved synthesizer and method
CA2344302A1 (en) Linear predictive analysis-by-synthesis encoding method and encoder
EP1204094A3 (en) Frequency dependent long term prediction analysis for speech coding
CA2155583A1 (en) Speech coder using a non-uniform pulse type sparse excitation codebook
CA2170007A1 (en) Determination of Gain for Pitch Period in Coding of Speech Signal
AU2002225953A1 (en) Injection high frequency noise into pulse excitation for low bit rate celp
CA2551458A1 (en) A vector quantization apparatus

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 20010404

AC Divisional application: reference to earlier application

Ref document number: 883107

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 20011213

AKX Designation fees paid

Free format text: DE FR GB IT

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AC Divisional application: reference to earlier application

Ref document number: 0883107

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69721595

Country of ref document: DE

Date of ref document: 20030605

Kind code of ref document: P

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040203

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: GODO KAISHA IP BRIDGE 1, JP

Effective date: 20140618

Ref country code: FR

Ref legal event code: CD

Owner name: GODO KAISHA IP BRIDGE 1, JP

Effective date: 20140618

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20140717 AND 20140723

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 69721595

Country of ref document: DE

Owner name: GODO KAISHA IP BRIDGE 1, JP

Free format text: FORMER OWNER: PANASONIC CORPORATION, KADOMA-SHI, OSAKA, JP

Effective date: 20140703

Ref country code: DE

Ref legal event code: R082

Ref document number: 69721595

Country of ref document: DE

Representative=s name: GRUENECKER, KINKELDEY, STOCKMAIR & SCHWANHAEUS, DE

Effective date: 20140703

Ref country code: DE

Ref legal event code: R082

Ref document number: 69721595

Country of ref document: DE

Representative=s name: GRUENECKER PATENT- UND RECHTSANWAELTE PARTG MB, DE

Effective date: 20140703

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20161102

Year of fee payment: 20

Ref country code: FR

Payment date: 20161014

Year of fee payment: 20

Ref country code: DE

Payment date: 20161101

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20161122

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69721595

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20171105

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20171105