ES2060132T3 - Metodo de posicionar impulsos de excitacion en un codificador de voz predictor lineal. - Google Patents

Metodo de posicionar impulsos de excitacion en un codificador de voz predictor lineal.

Info

Publication number
ES2060132T3
ES2060132T3 ES90850119T ES90850119T ES2060132T3 ES 2060132 T3 ES2060132 T3 ES 2060132T3 ES 90850119 T ES90850119 T ES 90850119T ES 90850119 T ES90850119 T ES 90850119T ES 2060132 T3 ES2060132 T3 ES 2060132T3
Authority
ES
Spain
Prior art keywords
pulse
excitation pulses
pulses
phase
voice encoder
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.)
Expired - Lifetime
Application number
ES90850119T
Other languages
English (en)
Inventor
Tor Bjorn Minde
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of ES2060132T3 publication Critical patent/ES2060132T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G10L19/10—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)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Control Of Stepping Motors (AREA)
  • Paper (AREA)
  • Numerical Control (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Traffic Control Systems (AREA)
  • Road Signs Or Road Markings (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Control Of Position Or Direction (AREA)
  • Saccharide Compounds (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

UN METODO PARA EL POSICIONAMIENTO DE IMPULSOS DE EXCITACION DE CONFORMIDAD CON EL PRINCIPIO DE IMPULSOS MULTIPLES, ES DECIR, UN NUMERO DE TALES IMPULSOS SE POSICIONAN EN PUNTOS DE TIEMPO ESPECIFICOS Y CON AMPLITUD ESPECIFICA. LOS PUNTOS DE TIEMPOS Y LAS AMPLITUDES SE DETERMINAN PARTIENDO DE PARAMETROS PREDICTIVOS (AK) Y LA SEÑAL (DK) DE RESIDUOS PREDICTIVOS, MEDIANTE LA CORRELACION ENTRE UNA SEÑAL (Y) REPRESENTATIVA DE VOZ Y UNA SEÑAL (Y) SINTETIZADA COMPUESTA. ESTO PUEDE PROPORCIONAR TODAS LAS POSICIONES DE TIEMPO POSIBLES PARA LOS IMPULSOS DE EXCITACION DENTRO DE UN INTERVALO DE CUADRO DADO. DE CONFORMIDAD CON EL METODO PROPUESTO, LAS POSICIONES DE TIEMPO POSIBLE SE DIVIDEN POR UN NUMERO (NF) DE POSICIONES DE FASE Y CADA POSICION DE FASE SE DIVIDE POR UN NUMERO DE FASES (F). ESTAS FASES ESTAN LIBRES PARA EL PRIMER IMPULSO DE EXCITACION. CUANDO SE HA POSICIONADO ESTE IMPULSO, SE DENIEGA LA FASE DETERMINADA POR ESTE IMPULSO A LOS IMPULSOS SIGUIENTES DE EXCITACION, HASTA QUE SE HAN POSICIONADO TODOS LOS IMPULSOS EN UN CUADRO.
ES90850119T 1989-05-11 1990-03-28 Metodo de posicionar impulsos de excitacion en un codificador de voz predictor lineal. Expired - Lifetime ES2060132T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8901697A SE463691B (sv) 1989-05-11 1990-03-09 Foerfarande att utplacera excitationspulser foer en lineaerprediktiv kodare (lpc) som arbetar enligt multipulsprincipen
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
ES2060132T3 true ES2060132T3 (es) 1994-11-16

Family

ID=26660505

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90850119T Expired - Lifetime ES2060132T3 (es) 1989-05-11 1990-03-28 Metodo de posicionar impulsos de excitacion en un codificador de voz predictor lineal.

Country Status (22)

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

Families Citing this family (24)

* 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
DE69434514T2 (de) * 1993-12-24 2006-06-22 Seiko Epson Corp. Tintenstrahlaufzeichnungskopf
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
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
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
US12254895B2 (en) 2021-07-02 2025-03-18 Digital Voice Systems, Inc. Detecting and compensating for the presence of a speaker mask in a speech signal
US11990144B2 (en) 2021-07-28 2024-05-21 Digital Voice Systems, Inc. Reducing perceived effects of non-voice data in digital speech
US12451151B2 (en) 2022-04-08 2025-10-21 Digital Voice Systems, Inc. Tone frame detector for digital speech
US12462814B2 (en) 2023-10-06 2025-11-04 Digital Voice Systems, Inc. Bit error correction 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
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
NL8500843A (nl) * 1985-03-22 1986-10-16 Koninkl Philips Electronics Nv Multipuls-excitatie lineair-predictieve spraakcoder.
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
CA2032520A1 (en) 1990-11-12
SG163394G (en) 1995-04-28
FI101753B1 (fi) 1998-08-14
EP0397628A1 (en) 1990-11-14
NZ233100A (en) 1992-04-28
PH27161A (en) 1993-04-02
TR24559A (tr) 1992-01-01
DE69012419T2 (de) 1995-02-16
WO1990013891A1 (en) 1990-11-15
JP3054438B2 (ja) 2000-06-19
PT93999A (pt) 1991-01-08
SE8901697D0 (sv) 1989-05-11
ATE111625T1 (de) 1994-09-15
DE69012419D1 (de) 1994-10-20
IE66681B1 (en) 1996-01-24
NO905471L (no) 1990-12-19
SE8901697L (sv) 1990-11-12
BR9006761A (pt) 1991-08-13
SE463691B (sv) 1991-01-07
AU5549090A (en) 1990-11-29
PT93999B (pt) 1996-08-30
NO905471D0 (no) 1990-12-19
CA2032520C (en) 1996-09-17
IE901467L (en) 1990-11-11
US5193140A (en) 1993-03-09
FI910021A0 (fi) 1991-01-02
EP0397628B1 (en) 1994-09-14
DK0397628T3 (da) 1995-01-16
HK147594A (en) 1995-01-06
CN1020975C (zh) 1993-05-26
FI101753B (sv) 1998-08-14
JPH03506079A (ja) 1991-12-26
AU629637B2 (en) 1992-10-08
NO302205B1 (no) 1998-02-02
CN1047157A (zh) 1990-11-21

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