CA2108623A1 - Adaptive pitch pulse enhancer and method for use in a codebook excited linear prediction (celp) search loop - Google Patents

Adaptive pitch pulse enhancer and method for use in a codebook excited linear prediction (celp) search loop

Info

Publication number
CA2108623A1
CA2108623A1 CA002108623A CA2108623A CA2108623A1 CA 2108623 A1 CA2108623 A1 CA 2108623A1 CA 002108623 A CA002108623 A CA 002108623A CA 2108623 A CA2108623 A CA 2108623A CA 2108623 A1 CA2108623 A1 CA 2108623A1
Authority
CA
Canada
Prior art keywords
codebook
excitation vector
adaptive codebook
adaptive
input signal
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.)
Abandoned
Application number
CA002108623A
Other languages
English (en)
French (fr)
Inventor
Yi-Sheng Wang
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.)
Raytheon Co
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2108623A1 publication Critical patent/CA2108623A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • 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
    • G10L2019/0002—Codebook adaptations
    • 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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/93—Discriminating between voiced and unvoiced parts of speech signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Electrically Operated Instructional Devices (AREA)
CA002108623A 1992-11-02 1993-10-18 Adaptive pitch pulse enhancer and method for use in a codebook excited linear prediction (celp) search loop Abandoned CA2108623A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US97044792A 1992-11-02 1992-11-02
US970,447 1992-11-02

Publications (1)

Publication Number Publication Date
CA2108623A1 true CA2108623A1 (en) 1994-05-03

Family

ID=25516958

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002108623A Abandoned CA2108623A1 (en) 1992-11-02 1993-10-18 Adaptive pitch pulse enhancer and method for use in a codebook excited linear prediction (celp) search loop

Country Status (9)

Country Link
US (1) US5528727A (esLanguage)
EP (1) EP0596847A3 (esLanguage)
JP (1) JPH06214599A (esLanguage)
KR (1) KR960013961B1 (esLanguage)
AU (1) AU654094B2 (esLanguage)
CA (1) CA2108623A1 (esLanguage)
FI (1) FI934615A7 (esLanguage)
NO (1) NO933940L (esLanguage)
TW (1) TW242724B (esLanguage)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9512284D0 (en) * 1995-06-16 1995-08-16 Nokia Mobile Phones Ltd Speech Synthesiser
KR100389895B1 (ko) * 1996-05-25 2003-11-28 삼성전자주식회사 음성 부호화 및 복호화방법 및 그 장치
US5799271A (en) * 1996-06-24 1998-08-25 Electronics And Telecommunications Research Institute Method for reducing pitch search time for vocoder
US6058359A (en) * 1998-03-04 2000-05-02 Telefonaktiebolaget L M Ericsson Speech coding including soft adaptability feature
EP1052620B1 (en) 1997-12-24 2004-07-21 Mitsubishi Denki Kabushiki Kaisha Sound encoding method and sound decoding method, and sound encoding device and sound decoding device
US6470309B1 (en) * 1998-05-08 2002-10-22 Texas Instruments Incorporated Subframe-based correlation
US6714907B2 (en) 1998-08-24 2004-03-30 Mindspeed Technologies, Inc. Codebook structure and search for speech coding
US6240386B1 (en) * 1998-08-24 2001-05-29 Conexant Systems, Inc. Speech codec employing noise classification for noise compensation
US6173257B1 (en) * 1998-08-24 2001-01-09 Conexant Systems, Inc Completed fixed codebook for speech encoder
US7072832B1 (en) * 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
US6556966B1 (en) 1998-08-24 2003-04-29 Conexant Systems, Inc. Codebook structure for changeable pulse multimode speech coding
US6449313B1 (en) * 1999-04-28 2002-09-10 Lucent Technologies Inc. Shaped fixed codebook search for celp speech coding
US6704701B1 (en) * 1999-07-02 2004-03-09 Mindspeed Technologies, Inc. Bi-directional pitch enhancement in speech coding systems
US6959274B1 (en) * 1999-09-22 2005-10-25 Mindspeed Technologies, Inc. Fixed rate speech compression system and method
US20030135374A1 (en) * 2002-01-16 2003-07-17 Hardwick John C. Speech synthesizer
KR100546758B1 (ko) * 2003-06-30 2006-01-26 한국전자통신연구원 음성의 상호부호화시 전송률 결정 장치 및 방법
US7536298B2 (en) 2004-03-15 2009-05-19 Intel Corporation Method of comfort noise generation for speech communication
KR100795727B1 (ko) * 2005-12-08 2008-01-21 한국전자통신연구원 Ｃｅｌｐ기반의 음성 코더에서 고정 코드북 검색 장치 및방법
US8401843B2 (en) * 2006-10-24 2013-03-19 Voiceage Corporation Method and device for coding transition frames in speech signals
US20100049508A1 (en) * 2006-12-14 2010-02-25 Panasonic Corporation Audio encoding device and audio encoding method
MY180722A (en) * 2013-10-18 2020-12-07 Fraunhofer Ges Forschung Concept for encoding an audio signal and decoding an audio signal using speech related spectral shaping information
ES2839086T3 (es) * 2013-10-18 2021-07-05 Fraunhofer Ges Forschung Concepto para codificar una señal de audio y decodificar una señal de audio usando información determinista y con características de ruido

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4910781A (en) * 1987-06-26 1990-03-20 At&T Bell Laboratories Code excited linear predictive vocoder using virtual searching
US5060269A (en) * 1989-05-18 1991-10-22 General Electric Company Hybrid switched multi-pulse/stochastic speech coding technique
JP2626223B2 (ja) * 1990-09-26 1997-07-02 日本電気株式会社 音声符号化装置
US5138661A (en) * 1990-11-13 1992-08-11 General Electric Company Linear predictive codeword excited speech synthesizer
US5233660A (en) * 1991-09-10 1993-08-03 At&T Bell Laboratories Method and apparatus for low-delay celp speech coding and decoding
US5327520A (en) * 1992-06-04 1994-07-05 At&T Bell Laboratories Method of use of voice message coder/decoder

Also Published As

Publication number Publication date
US5528727A (en) 1996-06-18
AU654094B2 (en) 1994-10-20
KR960013961B1 (ko) 1996-10-10
NO933940L (no) 1994-05-03
EP0596847A3 (en) 1995-06-14
AU5033693A (en) 1994-05-12
FI934615A0 (fi) 1993-10-19
JPH06214599A (ja) 1994-08-05
NO933940D0 (no) 1993-11-01
TW242724B (esLanguage) 1995-03-11
EP0596847A2 (en) 1994-05-11
KR940012931A (ko) 1994-06-24
FI934615A7 (fi) 1994-05-03

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued