NZ234180A - Digital speech encoder; determination of excitation vector independent of pitch parameter - Google Patents

Digital speech encoder; determination of excitation vector independent of pitch parameter

Info

Publication number
NZ234180A
NZ234180A NZ234180A NZ23418090A NZ234180A NZ 234180 A NZ234180 A NZ 234180A NZ 234180 A NZ234180 A NZ 234180A NZ 23418090 A NZ23418090 A NZ 23418090A NZ 234180 A NZ234180 A NZ 234180A
Authority
NZ
New Zealand
Prior art keywords
excitation
excitation signal
candidate
pitch
determining
Prior art date
Application number
NZ234180A
Other languages
English (en)
Inventor
Ira Alan Gerson
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 NZ247722A priority Critical patent/NZ247722A/xx
Publication of NZ234180A publication Critical patent/NZ234180A/en

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
    • G10L13/00—Speech synthesis; Text to speech systems
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0004—Design or structure of the codebook
    • G10L2019/0005—Multi-stage vector quantisation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0013—Codebook search algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
NZ234180A 1989-06-23 1990-06-21 Digital speech encoder; determination of excitation vector independent of pitch parameter NZ234180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NZ247722A NZ247722A (en) 1989-06-23 1990-06-21 Digital speech encoder uses plural excitation vector code tables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37054189A 1989-06-23 1989-06-23

Publications (1)

Publication Number Publication Date
NZ234180A true NZ234180A (en) 1993-11-25

Family

ID=23460115

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ234180A NZ234180A (en) 1989-06-23 1990-06-21 Digital speech encoder; determination of excitation vector independent of pitch parameter

Country Status (10)

Country Link
EP (1) EP0484339B1 (pt)
KR (1) KR950003557B1 (pt)
CN (1) CN1023160C (pt)
AU (1) AU638462B2 (pt)
BR (1) BR9007467A (pt)
CA (1) CA2060310C (pt)
DE (1) DE69032026T2 (pt)
IL (1) IL94119A (pt)
NZ (1) NZ234180A (pt)
WO (1) WO1991001545A1 (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0451199A (ja) * 1990-06-18 1992-02-19 Fujitsu Ltd 音声符号化・復号化方式
JPH0451200A (ja) * 1990-06-18 1992-02-19 Fujitsu Ltd 音声符号化方式
IT1241358B (it) * 1990-12-20 1994-01-10 Sip Sistema di codifica del segnale vocale con sottocodice annidato
JP2776050B2 (ja) * 1991-02-26 1998-07-16 日本電気株式会社 音声符号化方式
DE4315315A1 (de) * 1993-05-07 1994-11-10 Ant Nachrichtentech Verfahren zur Vektorquantisierung insbesondere von Sprachsignalen
US5727122A (en) * 1993-06-10 1998-03-10 Oki Electric Industry Co., Ltd. Code excitation linear predictive (CELP) encoder and decoder and code excitation linear predictive coding method
JP3224955B2 (ja) * 1994-05-27 2001-11-05 株式会社東芝 ベクトル量子化装置およびベクトル量子化方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1252568A (en) * 1984-12-24 1989-04-11 Kazunori Ozawa Low bit-rate pattern encoding and decoding capable of reducing an information transmission rate
US4868867A (en) * 1987-04-06 1989-09-19 Voicecraft Inc. Vector excitation speech or audio coder for transmission or storage
US4899385A (en) * 1987-06-26 1990-02-06 American Telephone And Telegraph Company Code excited linear predictive vocoder

Also Published As

Publication number Publication date
DE69032026T2 (de) 1998-09-17
KR950003557B1 (ko) 1995-04-14
CA2060310C (en) 2001-07-17
IL94119A (en) 1996-06-18
DE69032026D1 (de) 1998-03-12
CN1023160C (zh) 1993-12-15
EP0484339A4 (en) 1993-05-05
CA2060310A1 (en) 1990-12-24
BR9007467A (pt) 1992-06-16
AU5735990A (en) 1991-02-22
EP0484339B1 (en) 1998-02-04
IL94119A0 (en) 1991-01-31
EP0484339A1 (en) 1992-05-13
KR920702787A (ko) 1992-10-06
CN1048278A (zh) 1991-01-02
AU638462B2 (en) 1993-07-01
WO1991001545A1 (en) 1991-02-07

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