JPH075899A - パルス励振による解析−合成技術を採用した音声符号器 - Google Patents

パルス励振による解析−合成技術を採用した音声符号器

Info

Publication number
JPH075899A
JPH075899A JP6095525A JP9552594A JPH075899A JP H075899 A JPH075899 A JP H075899A JP 6095525 A JP6095525 A JP 6095525A JP 9552594 A JP9552594 A JP 9552594A JP H075899 A JPH075899 A JP H075899A
Authority
JP
Japan
Prior art keywords
signal
term
long
samples
value
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.)
Pending
Application number
JP6095525A
Other languages
English (en)
Japanese (ja)
Inventor
Luca Cellario
ルーカ・チエラリオ
Daniele Sereno
ダニエレ・セレーノ
Willem B Kleijn
ウイレム・バステイアーン・クレイジン
Peter Kroon
ピーター・クルーン
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.)
SIP SAS
TIM SpA
AT&T Corp
Original Assignee
SIP SAS
SIP Societa Italiana per lEsercizio delle Telecomunicazioni SpA
American Telephone and Telegraph Co Inc
AT&T Corp
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 SAS, SIP Societa Italiana per lEsercizio delle Telecomunicazioni SpA, American Telephone and Telegraph Co Inc, AT&T Corp filed Critical SIP SAS
Publication of JPH075899A publication Critical patent/JPH075899A/ja
Pending 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)
JP6095525A 1993-04-09 1994-04-08 パルス励振による解析−合成技術を採用した音声符号器 Pending JPH075899A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT93A000244 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
JPH075899A true JPH075899A (ja) 1995-01-10

Family

ID=11411368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6095525A Pending JPH075899A (ja) 1993-04-09 1994-04-08 パルス励振による解析−合成技術を採用した音声符号器

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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6334648B1 (en) 1997-03-21 2002-01-01 Girsberger Holding Ag Vehicle seat
US7236928B2 (en) 2001-12-19 2007-06-26 Ntt Docomo, Inc. Joint optimization of speech excitation and filter parameters
US7930173B2 (en) 2006-06-19 2011-04-19 Sharp Kabushiki Kaisha Signal processing method, signal processing apparatus and recording medium

Families Citing this family (10)

* 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
FR2729247A1 (fr) * 1995-01-06 1996-07-12 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
US5664054A (en) * 1995-09-29 1997-09-02 Rockwell International Corporation Spike code-excited linear prediction
AU3708597A (en) * 1996-08-02 1998-02-25 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
KR20000064913A (ko) * 1997-02-10 2000-11-06 요트.게.아. 롤페즈 저ㄴ송 시스템, 수신기, 및 재구성된 음성 신호 유도 방법
US6766289B2 (en) 2001-06-04 2004-07-20 Qualcomm Incorporated Fast code-vector searching
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
WO2010058931A2 (en) * 2008-11-14 2010-05-27 Lg Electronics Inc. A method and an apparatus for processing a signal
CN115803807B (zh) * 2020-06-25 2026-02-06 瑞典爱立信有限公司 改进的峰值检测器

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6334648B1 (en) 1997-03-21 2002-01-01 Girsberger Holding Ag Vehicle seat
US7236928B2 (en) 2001-12-19 2007-06-26 Ntt Docomo, Inc. Joint optimization of speech excitation and filter parameters
US7930173B2 (en) 2006-06-19 2011-04-19 Sharp Kabushiki Kaisha Signal processing method, signal processing apparatus and recording medium

Also Published As

Publication number Publication date
FI941648A0 (fi) 1994-04-08
EP0619574A1 (en) 1994-10-12
ITTO930244A1 (it) 1994-10-09
CA2120902A1 (en) 1994-10-10
IT1264766B1 (it) 1996-10-04
FI941648A7 (fi) 1994-10-10
ITTO930244A0 (it) 1993-04-09

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