ITTO930244A1 - Codificatore della voce utilizzante tecniche di analisi con un'eccitazione a impulsi. - Google Patents

Codificatore della voce utilizzante tecniche di analisi con un'eccitazione a impulsi.

Info

Publication number
ITTO930244A1
ITTO930244A1 IT000244A ITTO930244A ITTO930244A1 IT TO930244 A1 ITTO930244 A1 IT TO930244A1 IT 000244 A IT000244 A IT 000244A IT TO930244 A ITTO930244 A IT TO930244A IT TO930244 A1 ITTO930244 A1 IT TO930244A1
Authority
IT
Italy
Prior art keywords
analysis techniques
pulse excitation
voice coder
coder
voice
Prior art date
Application number
IT000244A
Other languages
English (en)
Inventor
Luca Cellario
Willem Bastiaan Kleijn
Peter Kroon
Daniele Sereno
Original Assignee
American Telephone & Telegraph
Sip
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 American Telephone & Telegraph, Sip filed Critical American Telephone & Telegraph
Priority to IT93TO000244A priority Critical patent/IT1264766B1/it
Publication of ITTO930244A0 publication Critical patent/ITTO930244A0/it
Priority to EP94105438A priority patent/EP0619574A1/en
Priority to FI941648A priority patent/FI941648A7/fi
Priority to JP6095525A priority patent/JPH075899A/ja
Priority to CA002120902A priority patent/CA2120902A1/en
Publication of ITTO930244A1 publication Critical patent/ITTO930244A1/it
Application granted granted Critical
Publication of IT1264766B1 publication Critical patent/IT1264766B1/it

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)
IT93TO000244A 1993-04-09 1993-04-09 Codificatore della voce utilizzante tecniche di analisi con un'eccitazione a impulsi. IT1264766B1 (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT93TO000244A IT1264766B1 (it) 1993-04-09 1993-04-09 Codificatore della voce utilizzante tecniche di analisi con un'eccitazione a impulsi.
EP94105438A EP0619574A1 (en) 1993-04-09 1994-04-07 Speech coder employing analysis-by-synthesis techniques with a pulse excitation
FI941648A FI941648A7 (fi) 1993-04-09 1994-04-08 Puhekoodain, joka hyödyntää synteesi-analyysitekniikkaa, ja joka omaa pulssiaktivoinnin
JP6095525A 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
CA002120902A CA2120902A1 (en) 1993-04-09 1994-04-08 Speech coder employing analysis-by-synthesis techniques with a pulse excitation

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
ITTO930244A0 ITTO930244A0 (it) 1993-04-09
ITTO930244A1 true ITTO930244A1 (it) 1994-10-09
IT1264766B1 IT1264766B1 (it) 1996-10-04

Family

ID=11411368

Family Applications (1)

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

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
CA2120902A1 (en) 1994-10-10
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

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