ES2054606T1 - Procedimiento y dispositivo para codificadores de voz basados en tecnicas de analisis por sintesis. - Google Patents

Procedimiento y dispositivo para codificadores de voz basados en tecnicas de analisis por sintesis.

Info

Publication number
ES2054606T1
ES2054606T1 ES93119522T ES93119522T ES2054606T1 ES 2054606 T1 ES2054606 T1 ES 2054606T1 ES 93119522 T ES93119522 T ES 93119522T ES 93119522 T ES93119522 T ES 93119522T ES 2054606 T1 ES2054606 T1 ES 2054606T1
Authority
ES
Spain
Prior art keywords
index
sub
frame
profit
gain
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.)
Granted
Application number
ES93119522T
Other languages
English (en)
Other versions
ES2054606T3 (es
Inventor
Luca Cellario
Daniele Sereno
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
Original Assignee
SIP SAS
SIP Societa Italiana per lEsercizio delle Telecomunicazioni SpA
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 filed Critical SIP SAS
Publication of ES2054606T1 publication Critical patent/ES2054606T1/es
Application granted granted Critical
Publication of ES2054606T3 publication Critical patent/ES2054606T3/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
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation 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
    • 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

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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

SE DETERMINA UNA SEÑAL DE EXCITACION OPTIMA PARA CADA SUBCUADRO DE UN CODIFICADOR DE LA VOZ BASADO EN TECNICAS DE ANALISIS POR SINTESIS Y QUE FUNCIONA EN CUADROS DE MUESTRAS DIVIDIDOS EN UNA SERIE DE SUBCUADROS. LA SEÑAL DE EXCITACION INCLUYE UN APORTE DE FORMA (INNOVACION) Y UN APORTE DE AMPLITUD (GANANCIA) QUE SE CUANTIFICAN POR SEPARADO. UN CIRCUITO (IT) PARA LA CUANTIFICACION DE LA GANANCIA INCLUYE ELEMENTOS (QU) PARA DETERMINAR UN INDICE DE GANANCIA PARA CADA SUBMARCO; UNA RED LOGICA DE COMPARACION (CFR) PARA DETECTAR EL VALOR MAXIMO TOMADO POR EL INDICE DE GANANCIA DE CADA MARCO; Y ELEMENTOS PARA CALCULAR UN INDICE NORMALIZADO PARA CADA SUBCUADRO COMO UNA DIFERENCIA ENTRE EL INDICE MAXIMO Y EL INDICE DE GANANCIA RELATIVA A ESE SUBMARCO. LA SEÑAL CODIFICADA INCLUYE LOS VALORES CODIFICADOS DEL INDICE MAXIMO Y DE LOS INDICES NORMALIZADOS A MODO DE INFORMACION SOBRE LA GANANCIA RELATIVA A UN MARCO.
ES93119522T 1992-12-04 1993-12-03 Procedimiento y dispositivo para la cuantificacion de las ganancias de la excitacion en codificadores de voz basados en tecnicas de analisis por sintesis. Expired - Lifetime ES2054606T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO920982A IT1257431B (it) 1992-12-04 1992-12-04 Procedimento e dispositivo per la quantizzazione dei guadagni dell'eccitazione in codificatori della voce basati su tecniche di analisi per sintesi

Publications (2)

Publication Number Publication Date
ES2054606T1 true ES2054606T1 (es) 1994-08-16
ES2054606T3 ES2054606T3 (es) 1998-12-16

Family

ID=11410902

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93119522T Expired - Lifetime ES2054606T3 (es) 1992-12-04 1993-12-03 Procedimiento y dispositivo para la cuantificacion de las ganancias de la excitacion en codificadores de voz basados en tecnicas de analisis por sintesis.

Country Status (10)

Country Link
US (1) US5519807A (es)
EP (1) EP0600504B1 (es)
JP (1) JP3204581B2 (es)
AT (1) ATE172045T1 (es)
CA (1) CA2110645C (es)
DE (2) DE69321444T2 (es)
ES (1) ES2054606T3 (es)
FI (1) FI115327B (es)
GR (1) GR940300069T1 (es)
IT (1) IT1257431B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW419645B (en) * 1996-05-24 2001-01-21 Koninkl Philips Electronics Nv A method for coding Human speech and an apparatus for reproducing human speech so coded
US6370238B1 (en) 1997-09-19 2002-04-09 Siemens Information And Communication Networks Inc. System and method for improved user interface in prompting systems
US6069940A (en) * 1997-09-19 2000-05-30 Siemens Information And Communication Networks, Inc. Apparatus and method for adding a subject line to voice mail messages
US6584181B1 (en) 1997-09-19 2003-06-24 Siemens Information & Communication Networks, Inc. System and method for organizing multi-media messages folders from a displayless interface and selectively retrieving information using voice labels
SE519563C2 (sv) * 1998-09-16 2003-03-11 Ericsson Telefon Ab L M Förfarande och kodare för linjär prediktiv analys-genom- synteskodning
CA2252170A1 (en) 1998-10-27 2000-04-27 Bruno Bessette A method and device for high quality coding of wideband speech and audio signals
EP1444688B1 (en) 2001-11-14 2006-08-16 Matsushita Electric Industrial Co., Ltd. Encoding device and decoding device
DE10249386B3 (de) * 2002-10-23 2004-07-08 Pingo Erzeugnisse Gmbh Mittel zur präventiven und abwehrenden Bekämpfung von Metallbränden
US7542899B2 (en) * 2003-09-30 2009-06-02 Alcatel-Lucent Usa Inc. Method and apparatus for adjusting the level of a speech signal in its encoded format
US8265929B2 (en) * 2004-12-08 2012-09-11 Electronics And Telecommunications Research Institute Embedded code-excited linear prediction speech coding and decoding apparatus and method
US9454974B2 (en) * 2006-07-31 2016-09-27 Qualcomm Incorporated Systems, methods, and apparatus for gain factor limiting
MY167980A (en) * 2009-10-20 2018-10-09 Fraunhofer Ges Forschung Multi- mode audio codec and celp coding adapted therefore
US10373608B2 (en) 2015-10-22 2019-08-06 Texas Instruments Incorporated Time-based frequency tuning of analog-to-information feature extraction

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1229681A (en) * 1984-03-06 1987-11-24 Kazunori Ozawa Method and apparatus for speech-band signal coding
US4704730A (en) * 1984-03-12 1987-11-03 Allophonix, Inc. Multi-state speech encoder and decoder
CA1255802A (en) * 1984-07-05 1989-06-13 Kazunori Ozawa Low bit-rate pattern encoding and decoding with a reduced number of excitation pulses
JPS6332599A (ja) * 1986-07-25 1988-02-12 松下電器産業株式会社 音声符号化装置
US4771465A (en) * 1986-09-11 1988-09-13 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech sinusoidal vocoder with transmission of only subset of harmonics
US4803730A (en) * 1986-10-31 1989-02-07 American Telephone And Telegraph Company, At&T Bell Laboratories Fast significant sample detection for a pitch detector
US5018200A (en) * 1988-09-21 1991-05-21 Nec Corporation Communication system capable of improving a speech quality by classifying speech signals
EP0422232B1 (en) * 1989-04-25 1996-11-13 Kabushiki Kaisha Toshiba Voice encoder
IT1232084B (it) * 1989-05-03 1992-01-23 Cselt Centro Studi Lab Telecom Sistema di codifica per segnali audio a banda allargata
US5144671A (en) * 1990-03-15 1992-09-01 Gte Laboratories Incorporated Method for reducing the search complexity in analysis-by-synthesis coding
US5323486A (en) * 1990-09-14 1994-06-21 Fujitsu Limited Speech coding system having codebook storing differential vectors between each two adjoining code vectors
US5369724A (en) * 1992-01-17 1994-11-29 Massachusetts Institute Of Technology Method and apparatus for encoding, decoding and compression of audio-type data using reference coefficients located within a band of coefficients

Also Published As

Publication number Publication date
ES2054606T3 (es) 1998-12-16
ITTO920982A0 (it) 1992-12-04
FI115327B (fi) 2005-04-15
IT1257431B (it) 1996-01-16
CA2110645A1 (en) 1994-06-05
US5519807A (en) 1996-05-21
JP3204581B2 (ja) 2001-09-04
DE600504T1 (de) 1994-12-08
DE69321444T2 (de) 1999-04-22
GR940300069T1 (en) 1994-10-31
FI935423A7 (fi) 1994-06-05
EP0600504A1 (en) 1994-06-08
FI935423A0 (fi) 1993-12-03
JPH06348300A (ja) 1994-12-22
EP0600504B1 (en) 1998-10-07
CA2110645C (en) 1998-06-16
ITTO920982A1 (it) 1994-06-04
DE69321444D1 (de) 1998-11-12
ATE172045T1 (de) 1998-10-15

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