DK0450064T4 - Digital talekoder med forbedret langtidsforudsigter med subsampleoplösning - Google Patents

Digital talekoder med forbedret langtidsforudsigter med subsampleoplösning

Info

Publication number
DK0450064T4
DK0450064T4 DK91905041T DK91905041T DK0450064T4 DK 0450064 T4 DK0450064 T4 DK 0450064T4 DK 91905041 T DK91905041 T DK 91905041T DK 91905041 T DK91905041 T DK 91905041T DK 0450064 T4 DK0450064 T4 DK 0450064T4
Authority
DK
Denmark
Prior art keywords
long
term
term predictor
vector
delayed
Prior art date
Application number
DK91905041T
Other languages
Danish (da)
English (en)
Other versions
DK0450064T3 (da
Inventor
Ira Alan Gerson
Mark A Jasiuk
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23590969&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK0450064(T4) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of DK0450064T3 publication Critical patent/DK0450064T3/da
Application granted granted Critical
Publication of DK0450064T4 publication Critical patent/DK0450064T4/da

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
    • 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

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)
  • Complex Calculations (AREA)
  • Analogue/Digital Conversion (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Near-Field Transmission Systems (AREA)
DK91905041T 1989-09-01 1990-06-25 Digital talekoder med forbedret langtidsforudsigter med subsampleoplösning DK0450064T4 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40220689A 1989-09-01 1989-09-01
PCT/US1990/003625 WO1991003790A1 (en) 1989-09-01 1990-06-25 Digital speech coder having improved sub-sample resolution long-term predictor

Publications (2)

Publication Number Publication Date
DK0450064T3 DK0450064T3 (da) 2000-10-02
DK0450064T4 true DK0450064T4 (da) 2006-09-04

Family

ID=23590969

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91905041T DK0450064T4 (da) 1989-09-01 1990-06-25 Digital talekoder med forbedret langtidsforudsigter med subsampleoplösning

Country Status (12)

Country Link
EP (1) EP0450064B2 (zh)
JP (1) JP3268360B2 (zh)
CN (1) CN1026274C (zh)
AT (1) ATE191987T1 (zh)
AU (1) AU634795B2 (zh)
CA (1) CA2037899C (zh)
DE (1) DE69033510T3 (zh)
DK (1) DK0450064T4 (zh)
ES (1) ES2145737T5 (zh)
MX (1) MX167644B (zh)
SG (1) SG47028A1 (zh)
WO (1) WO1991003790A1 (zh)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327520A (en) * 1992-06-04 1994-07-05 At&T Bell Laboratories Method of use of voice message coder/decoder
FR2702590B1 (fr) * 1993-03-12 1995-04-28 Dominique Massaloux Dispositif de codage et de décodage numériques de la parole, procédé d'exploration d'un dictionnaire pseudo-logarithmique de délais LTP, et procédé d'analyse LTP.
FI96248C (fi) 1993-05-06 1996-05-27 Nokia Mobile Phones Ltd Menetelmä pitkän aikavälin synteesisuodattimen toteuttamiseksi sekä synteesisuodatin puhekoodereihin
DE4421853A1 (de) * 1994-06-22 1996-01-04 Philips Patentverwaltung Mobilfunkendgerät
GB9408037D0 (en) * 1994-04-22 1994-06-15 Philips Electronics Uk Ltd Analogue signal coder
JP2970407B2 (ja) * 1994-06-21 1999-11-02 日本電気株式会社 音声の励振信号符号化装置
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
FR2729244B1 (fr) * 1995-01-06 1997-03-28 Matra Communication Procede de codage de parole a analyse par synthese
US5708757A (en) * 1996-04-22 1998-01-13 France Telecom Method of determining parameters of a pitch synthesis filter in a speech coder, and speech coder implementing such method
JP4857467B2 (ja) 2001-01-25 2012-01-18 ソニー株式会社 データ処理装置およびデータ処理方法、並びにプログラムおよび記録媒体
JP4857468B2 (ja) * 2001-01-25 2012-01-18 ソニー株式会社 データ処理装置およびデータ処理方法、並びにプログラムおよび記録媒体
GB2466672B (en) * 2009-01-06 2013-03-13 Skype Speech coding
GB2466675B (en) 2009-01-06 2013-03-06 Skype Speech coding
GB2466671B (en) 2009-01-06 2013-03-27 Skype Speech encoding
GB2466673B (en) 2009-01-06 2012-11-07 Skype Quantization
GB2466674B (en) 2009-01-06 2013-11-13 Skype Speech coding
CN104025191A (zh) * 2011-10-18 2014-09-03 爱立信(中国)通信有限公司 用于自适应多速率编解码器的改进方法和设备
FR3015754A1 (fr) * 2013-12-20 2015-06-26 Orange Re-echantillonnage d'un signal audio cadence a une frequence d'echantillonnage variable selon la trame

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL168669C (nl) * 1974-09-16 1982-04-16 Philips Nv Interpolerend digitaal filter met ingangsbuffer.
US4080660A (en) * 1975-07-11 1978-03-21 James Nickolas Constant Digital signal time scale inversion
US4020332A (en) * 1975-09-24 1977-04-26 Bell Telephone Laboratories, Incorporated Interpolation-decimation circuit for increasing or decreasing digital sampling frequency
NL8105801A (nl) * 1981-12-23 1983-07-18 Philips Nv Recursief digitaal filter.
US4573135A (en) * 1983-04-25 1986-02-25 Rca Corporation Digital lowpass filter having controllable gain
JPS60116000A (ja) * 1983-11-28 1985-06-22 ケイディディ株式会社 音声符号化装置
JPS63214032A (ja) * 1987-03-02 1988-09-06 Fujitsu Ltd 符号化伝送装置
JPS63249200A (ja) * 1987-04-06 1988-10-17 日本電信電話株式会社 ベクトル量子化方式
JPH01177227A (ja) * 1988-01-05 1989-07-13 Toshiba Corp 音声コーデック

Also Published As

Publication number Publication date
CA2037899C (en) 1996-09-17
DE69033510T2 (de) 2000-11-23
JP3268360B2 (ja) 2002-03-25
DE69033510D1 (de) 2000-05-25
DK0450064T3 (da) 2000-10-02
CN1050633A (zh) 1991-04-10
ES2145737T3 (es) 2000-07-16
DE69033510T3 (de) 2007-06-06
JPH04502675A (ja) 1992-05-14
EP0450064B2 (en) 2006-08-09
EP0450064B1 (en) 2000-04-19
EP0450064A1 (en) 1991-10-09
AU634795B2 (en) 1993-03-04
CA2037899A1 (en) 1991-03-02
ATE191987T1 (de) 2000-05-15
MX167644B (es) 1993-03-31
WO1991003790A1 (en) 1991-03-21
SG47028A1 (en) 1998-03-20
CN1026274C (zh) 1994-10-19
EP0450064A4 (en) 1995-04-05
ES2145737T5 (es) 2007-03-01
AU5952590A (en) 1991-04-08

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