BR9007467A - Processo de codificacao de amostra de fala e processo de codificacao de amostra de sinal - Google Patents

Processo de codificacao de amostra de fala e processo de codificacao de amostra de sinal

Info

Publication number
BR9007467A
BR9007467A BR909007467A BR9007467A BR9007467A BR 9007467 A BR9007467 A BR 9007467A BR 909007467 A BR909007467 A BR 909007467A BR 9007467 A BR9007467 A BR 9007467A BR 9007467 A BR9007467 A BR 9007467A
Authority
BR
Brazil
Prior art keywords
coding process
sample coding
speech
signal
signal sample
Prior art date
Application number
BR909007467A
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
Publication of BR9007467A publication Critical patent/BR9007467A/pt

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L13/00Speech synthesis; Text to speech systems
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/08Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12Determination 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
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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 TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L2019/0011Long term prediction filters, i.e. pitch estimation
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L2019/0013Codebook 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)
BR909007467A 1989-06-23 1990-05-02 Processo de codificacao de amostra de fala e processo de codificacao de amostra de sinal BR9007467A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37054189A 1989-06-23 1989-06-23
PCT/US1990/002469 WO1991001545A1 (en) 1989-06-23 1990-05-02 Digital speech coder with vector excitation source having improved speech quality

Publications (1)

Publication Number Publication Date
BR9007467A true BR9007467A (pt) 1992-06-16

Family

ID=23460115

Family Applications (1)

Application Number Title Priority Date Filing Date
BR909007467A BR9007467A (pt) 1989-06-23 1990-05-02 Processo de codificacao de amostra de fala e processo de codificacao de amostra de sinal

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
JPH0451200A (ja) * 1990-06-18 1992-02-19 Fujitsu Ltd 音声符号化方式
JPH0451199A (ja) * 1990-06-18 1992-02-19 Fujitsu Ltd 音声符号化・復号化方式
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
EP0654909A4 (en) * 1993-06-10 1997-09-10 Oki Electric Ind Co Ltd PREDICTIVE LINEAR ENCODER-ENCODER WITH CODES EXCITATION.
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
AU638462B2 (en) 1993-07-01
KR950003557B1 (ko) 1995-04-14
CA2060310C (en) 2001-07-17
CN1023160C (zh) 1993-12-15
CN1048278A (zh) 1991-01-02
DE69032026D1 (de) 1998-03-12
AU5735990A (en) 1991-02-22
WO1991001545A1 (en) 1991-02-07
NZ234180A (en) 1993-11-25
EP0484339A1 (en) 1992-05-13
IL94119A0 (en) 1991-01-31
EP0484339B1 (en) 1998-02-04
KR920702787A (ko) 1992-10-06
CA2060310A1 (en) 1990-12-24
DE69032026T2 (de) 1998-09-17
EP0484339A4 (en) 1993-05-05
IL94119A (en) 1996-06-18

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Legal Events

Date Code Title Description
FB19 Grant procedure suspended (art. 19)
FB19 Grant procedure suspended (art. 19)
FF Decision: intention to grant
KD Notifcation of receipt (letter patent)
FG Letter patent granted
KD1 Payment of complementary fee requested
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 02/05/2005

B15K Others concerning applications: alteration of classification

Ipc: G10L 19/12 (2013.01)