CA2120902A1 - Speech coder employing analysis-by-synthesis techniques with a pulse excitation - Google Patents

Speech coder employing analysis-by-synthesis techniques with a pulse excitation

Info

Publication number
CA2120902A1
CA2120902A1 CA002120902A CA2120902A CA2120902A1 CA 2120902 A1 CA2120902 A1 CA 2120902A1 CA 002120902 A CA002120902 A CA 002120902A CA 2120902 A CA2120902 A CA 2120902A CA 2120902 A1 CA2120902 A1 CA 2120902A1
Authority
CA
Canada
Prior art keywords
signal
shift
subframe
residual signal
long
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
CA002120902A
Other languages
English (en)
French (fr)
Inventor
Luca Cellario
Daniele Sereno
Willem Bastiaan Kleijn
Peter Kroon
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.)
TIM SpA
AT&T Corp
Original Assignee
SIP Societa Italiana per lEsercizio delle Telecomunicazioni SpA
American Telephone and Telegraph Co 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 SIP Societa Italiana per lEsercizio delle Telecomunicazioni SpA, American Telephone and Telegraph Co Inc filed Critical SIP Societa Italiana per lEsercizio delle Telecomunicazioni SpA
Publication of CA2120902A1 publication Critical patent/CA2120902A1/en
Abandoned 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
    • 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
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • 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
    • G10L2019/0003—Backward prediction of gain
    • 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
    • G10L2019/0012—Smoothing of parameters of the decoder interpolation
    • 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
    • G10L2019/0014—Selection criteria for distances
    • 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/24—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being the cepstrum

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)
CA002120902A 1993-04-09 1994-04-08 Speech coder employing analysis-by-synthesis techniques with a pulse excitation Abandoned CA2120902A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO93A000244 1993-04-09
IT93TO000244A IT1264766B1 (it) 1993-04-09 1993-04-09 Codificatore della voce utilizzante tecniche di analisi con un'eccitazione a impulsi.

Publications (1)

Publication Number Publication Date
CA2120902A1 true CA2120902A1 (en) 1994-10-10

Family

ID=11411368

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002120902A Abandoned CA2120902A1 (en) 1993-04-09 1994-04-08 Speech coder employing analysis-by-synthesis techniques with a pulse excitation

Country Status (5)

Country Link
EP (1) EP0619574A1 (it)
JP (1) JPH075899A (it)
CA (1) CA2120902A1 (it)
FI (1) FI941648A7 (it)
IT (1) IT1264766B1 (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2729244B1 (fr) * 1995-01-06 1997-03-28 Matra Communication Procede de codage de parole a analyse par synthese
FR2729246A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
FR2729247A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
US5664054A (en) * 1995-09-29 1997-09-02 Rockwell International Corporation Spike code-excited linear prediction
WO1998006091A1 (en) * 1996-08-02 1998-02-12 Matsushita Electric Industrial Co., Ltd. Voice encoder, voice decoder, recording medium on which program for realizing voice encoding/decoding is recorded and mobile communication apparatus
JP2000509847A (ja) * 1997-02-10 2000-08-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 音声信号を伝送する伝送システム
US6334648B1 (en) 1997-03-21 2002-01-01 Girsberger Holding Ag Vehicle seat
US6766289B2 (en) * 2001-06-04 2004-07-20 Qualcomm Incorporated Fast code-vector searching
US7236928B2 (en) 2001-12-19 2007-06-26 Ntt Docomo, Inc. Joint optimization of speech excitation and filter parameters
JP3981399B1 (ja) * 2006-03-10 2007-09-26 松下電器産業株式会社 固定符号帳探索装置および固定符号帳探索方法
DE602007005729D1 (de) 2006-06-19 2010-05-20 Sharp Kk Signalverarbeitungsverfahren, Signalverarbeitungsvorrichtung und Aufzeichnungsmedium
WO2010058931A2 (en) * 2008-11-14 2010-05-27 Lg Electronics Inc. A method and an apparatus for processing a signal
WO2021259975A1 (en) * 2020-06-25 2021-12-30 Telefonaktiebolaget Lm Ericsson (Publ) Improved peak detector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8500843A (nl) * 1985-03-22 1986-10-16 Koninkl Philips Electronics Nv Multipuls-excitatie lineair-predictieve spraakcoder.
US4890328A (en) * 1985-08-28 1989-12-26 American Telephone And Telegraph Company Voice synthesis utilizing multi-level filter excitation
US5293449A (en) * 1990-11-23 1994-03-08 Comsat Corporation Analysis-by-synthesis 2,4 kbps linear predictive speech codec

Also Published As

Publication number Publication date
ITTO930244A0 (it) 1993-04-09
EP0619574A1 (en) 1994-10-12
IT1264766B1 (it) 1996-10-04
FI941648A0 (fi) 1994-04-08
JPH075899A (ja) 1995-01-10
FI941648A7 (fi) 1994-10-10
ITTO930244A1 (it) 1994-10-09

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued