BR9006761A - Processo para posicionar pulsos de excitacao para um codificador de predicao linear - Google Patents

Processo para posicionar pulsos de excitacao para um codificador de predicao linear

Info

Publication number
BR9006761A
BR9006761A BR909006761A BR9006761A BR9006761A BR 9006761 A BR9006761 A BR 9006761A BR 909006761 A BR909006761 A BR 909006761A BR 9006761 A BR9006761 A BR 9006761A BR 9006761 A BR9006761 A BR 9006761A
Authority
BR
Brazil
Prior art keywords
pulses
pulse
positioning
phase
encoder
Prior art date
Application number
BR909006761A
Other languages
English (en)
Inventor
Tor Bjorn Minde
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BR9006761A publication Critical patent/BR9006761A/pt

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
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation

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)
  • Analogue/Digital Conversion (AREA)
  • Numerical Control (AREA)
  • Paper (AREA)
  • Control Of Stepping Motors (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Traffic Control Systems (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Road Signs Or Road Markings (AREA)
  • Saccharide Compounds (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Control Of Position Or Direction (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
BR909006761A 1989-05-11 1990-03-09 Processo para posicionar pulsos de excitacao para um codificador de predicao linear BR9006761A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE8901697A SE463691B (sv) 1989-05-11 1989-05-11 Foerfarande att utplacera excitationspulser foer en lineaerprediktiv kodare (lpc) som arbetar enligt multipulsprincipen
PCT/SE1990/000153 WO1990013891A1 (en) 1989-05-11 1990-03-09 Excitation pulse positioning method in a linear predictive speech coder
SG163394A SG163394G (en) 1989-05-11 1994-11-14 Excitation pulse prositioning method in a linear predictive speech coder

Publications (1)

Publication Number Publication Date
BR9006761A true BR9006761A (pt) 1991-08-13

Family

ID=26660505

Family Applications (1)

Application Number Title Priority Date Filing Date
BR909006761A BR9006761A (pt) 1989-05-11 1990-03-09 Processo para posicionar pulsos de excitacao para um codificador de predicao linear

Country Status (22)

Country Link
US (1) US5193140A (pt)
EP (1) EP0397628B1 (pt)
JP (1) JP3054438B2 (pt)
CN (1) CN1020975C (pt)
AT (1) ATE111625T1 (pt)
AU (1) AU629637B2 (pt)
BR (1) BR9006761A (pt)
CA (1) CA2032520C (pt)
DE (1) DE69012419T2 (pt)
DK (1) DK0397628T3 (pt)
ES (1) ES2060132T3 (pt)
FI (1) FI101753B (pt)
HK (1) HK147594A (pt)
IE (1) IE66681B1 (pt)
NO (1) NO302205B1 (pt)
NZ (1) NZ233100A (pt)
PH (1) PH27161A (pt)
PT (1) PT93999B (pt)
SE (1) SE463691B (pt)
SG (1) SG163394G (pt)
TR (1) TR24559A (pt)
WO (1) WO1990013891A1 (pt)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5754976A (en) * 1990-02-23 1998-05-19 Universite De Sherbrooke Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech
US5701392A (en) * 1990-02-23 1997-12-23 Universite De Sherbrooke Depth-first algebraic-codebook search for fast coding of speech
EP1170127B1 (en) * 1993-12-24 2005-10-19 Seiko Epson Corporation Ink jet recording head
JPH08123494A (ja) * 1994-10-28 1996-05-17 Mitsubishi Electric Corp 音声符号化装置、音声復号化装置、音声符号化復号化方法およびこれらに使用可能な位相振幅特性導出装置
JP3328080B2 (ja) * 1994-11-22 2002-09-24 沖電気工業株式会社 コード励振線形予測復号器
DE4446558A1 (de) * 1994-12-24 1996-06-27 Philips Patentverwaltung Digitales Übertragungssystem mit verbessertem Decoder im Empfänger
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
FR2729247A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
SE506379C3 (sv) * 1995-03-22 1998-01-19 Ericsson Telefon Ab L M Lpc-talkodare med kombinerad excitation
SE508788C2 (sv) * 1995-04-12 1998-11-02 Ericsson Telefon Ab L M Förfarande att bestämma positionerna inom en talram för excitationspulser
DE19641619C1 (de) * 1996-10-09 1997-06-26 Nokia Mobile Phones Ltd Verfahren zur Synthese eines Rahmens eines Sprachsignals
JP3063668B2 (ja) 1997-04-04 2000-07-12 日本電気株式会社 音声符号化装置及び復号装置
JPH10303252A (ja) * 1997-04-28 1998-11-13 Nec Kansai Ltd 半導体装置
CA2254620A1 (en) * 1998-01-13 1999-07-13 Lucent Technologies Inc. Vocoder with efficient, fault tolerant excitation vector encoding
JP3199020B2 (ja) * 1998-02-27 2001-08-13 日本電気株式会社 音声音楽信号の符号化装置および復号装置
KR100409167B1 (ko) * 1998-09-11 2003-12-12 모토로라 인코포레이티드 정보 신호를 부호화하는 방법 및 장치
US6539349B1 (en) 2000-02-15 2003-03-25 Lucent Technologies Inc. Constraining pulse positions in CELP vocoding
US8036886B2 (en) * 2006-12-22 2011-10-11 Digital Voice Systems, Inc. Estimation of pulsed speech model parameters
US11270714B2 (en) 2020-01-08 2022-03-08 Digital Voice Systems, Inc. Speech coding using time-varying interpolation
US11990144B2 (en) 2021-07-28 2024-05-21 Digital Voice Systems, Inc. Reducing perceived effects of non-voice data in digital speech

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472832A (en) * 1981-12-01 1984-09-18 At&T Bell Laboratories Digital speech coder
NL8302985A (nl) * 1983-08-26 1985-03-18 Philips Nv Multipulse excitatie lineair predictieve spraakcodeerder.
CA1255802A (en) * 1984-07-05 1989-06-13 Kazunori Ozawa Low bit-rate pattern encoding and decoding with a reduced number of excitation pulses
NL8500843A (nl) * 1985-03-22 1986-10-16 Koninkl Philips Electronics Nv Multipuls-excitatie lineair-predictieve spraakcoder.
FR2579356B1 (fr) * 1985-03-22 1987-05-07 Cit Alcatel Procede de codage a faible debit de la parole a signal multi-impulsionnel d'excitation
US4944013A (en) * 1985-04-03 1990-07-24 British Telecommunications Public Limited Company Multi-pulse speech coder
GB8621932D0 (en) * 1986-09-11 1986-10-15 British Telecomm Speech coding

Also Published As

Publication number Publication date
SE8901697D0 (sv) 1989-05-11
CN1020975C (zh) 1993-05-26
HK147594A (en) 1995-01-06
TR24559A (tr) 1992-01-01
CA2032520C (en) 1996-09-17
NO302205B1 (no) 1998-02-02
DE69012419D1 (de) 1994-10-20
IE901467L (en) 1990-11-11
AU629637B2 (en) 1992-10-08
JP3054438B2 (ja) 2000-06-19
CN1047157A (zh) 1990-11-21
PT93999B (pt) 1996-08-30
SE8901697L (sv) 1990-11-12
FI101753B1 (fi) 1998-08-14
NO905471D0 (no) 1990-12-19
DE69012419T2 (de) 1995-02-16
ES2060132T3 (es) 1994-11-16
NO905471L (no) 1990-12-19
CA2032520A1 (en) 1990-11-12
NZ233100A (en) 1992-04-28
IE66681B1 (en) 1996-01-24
FI910021A0 (fi) 1991-01-02
EP0397628B1 (en) 1994-09-14
PH27161A (en) 1993-04-02
EP0397628A1 (en) 1990-11-14
SG163394G (en) 1995-04-28
WO1990013891A1 (en) 1990-11-15
AU5549090A (en) 1990-11-29
FI101753B (sv) 1998-08-14
SE463691B (sv) 1991-01-07
PT93999A (pt) 1991-01-08
JPH03506079A (ja) 1991-12-26
DK0397628T3 (da) 1995-01-16
US5193140A (en) 1993-03-09
ATE111625T1 (de) 1994-09-15

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Legal Events

Date Code Title Description
FB19 Grant procedure suspended (art. 19)
FF Decision: intention to grant
KD Notifcation of receipt (letter patent)
FG Letter patent granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 09/03/2005

B15K Others concerning applications: alteration of classification

Free format text: PROCEDIMENTO AUTOMATICO DE RECLASSIFICACAO. A CLASSIFICACAO IPC ANTERIOR ERA G10L 9/14.

Ipc: G10L 19/10 (2013.01)

Ipc: G10L 19/10 (2013.01)