MX9300401A - Prediccion a largo plazo de modo doble en codificacion de voz. - Google Patents

Prediccion a largo plazo de modo doble en codificacion de voz.

Info

Publication number
MX9300401A
MX9300401A MX9300401A MX9300401A MX9300401A MX 9300401 A MX9300401 A MX 9300401A MX 9300401 A MX9300401 A MX 9300401A MX 9300401 A MX9300401 A MX 9300401A MX 9300401 A MX9300401 A MX 9300401A
Authority
MX
Mexico
Prior art keywords
long
double mode
voice coding
term forecast
vector
Prior art date
Application number
MX9300401A
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 MX9300401A publication Critical patent/MX9300401A/es

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
    • G10L2019/0004—Design or structure of the codebook
    • G10L2019/0005—Multi-stage vector quantisation
    • 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

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)

Abstract

La invención se relaciona con un método para codificar un vector de señal de voz muestreado (s(n) en un método de codificación de análisis mediante síntesis formando un vector de excitación óptimo que comprende una combinación lineal de vector de código de un libro de código fijo (12) y un vector predictor a largo plazo.
MX9300401A 1992-01-27 1993-01-26 Prediccion a largo plazo de modo doble en codificacion de voz. MX9300401A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9200217A SE469764B (sv) 1992-01-27 1992-01-27 Saett att koda en samplad talsignalvektor

Publications (1)

Publication Number Publication Date
MX9300401A true MX9300401A (es) 1993-07-01

Family

ID=20385120

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9300401A MX9300401A (es) 1992-01-27 1993-01-26 Prediccion a largo plazo de modo doble en codificacion de voz.

Country Status (15)

Country Link
US (1) US5553191A (es)
EP (1) EP0577809B1 (es)
JP (1) JP3073017B2 (es)
AU (1) AU658053B2 (es)
BR (1) BR9303964A (es)
CA (1) CA2106390A1 (es)
DE (1) DE69314389T2 (es)
DK (1) DK0577809T3 (es)
ES (1) ES2110595T3 (es)
FI (1) FI934063A0 (es)
HK (1) HK1003346A1 (es)
MX (1) MX9300401A (es)
SE (1) SE469764B (es)
TW (1) TW227609B (es)
WO (1) WO1993015503A1 (es)

Families Citing this family (23)

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FI95086C (fi) * 1992-11-26 1995-12-11 Nokia Mobile Phones Ltd Menetelmä puhesignaalin tehokkaaksi koodaamiseksi
MX9603122A (es) * 1994-02-01 1997-03-29 Qualcomm Inc Prediccion lineal excitada por rafaga.
GB9408037D0 (en) * 1994-04-22 1994-06-15 Philips Electronics Uk Ltd Analogue signal coder
US7133835B1 (en) * 1995-08-08 2006-11-07 Cxn, Inc. Online exchange market system with a buyer auction and a seller auction
US6765904B1 (en) 1999-08-10 2004-07-20 Texas Instruments Incorporated Packet networks
US5799272A (en) * 1996-07-01 1998-08-25 Ess Technology, Inc. Switched multiple sequence excitation model for low bit rate speech compression
JP3357795B2 (ja) * 1996-08-16 2002-12-16 株式会社東芝 音声符号化方法および装置
FI964975A (fi) * 1996-12-12 1998-06-13 Nokia Mobile Phones Ltd Menetelmä ja laite puheen koodaamiseksi
US6068630A (en) * 1997-01-02 2000-05-30 St. Francis Medical Technologies, Inc. Spine distraction implant
US7072832B1 (en) 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
SE519563C2 (sv) * 1998-09-16 2003-03-11 Ericsson Telefon Ab L M Förfarande och kodare för linjär prediktiv analys-genom- synteskodning
US6744757B1 (en) 1999-08-10 2004-06-01 Texas Instruments Incorporated Private branch exchange systems for packet communications
US6804244B1 (en) 1999-08-10 2004-10-12 Texas Instruments Incorporated Integrated circuits for packet communications
US6801532B1 (en) * 1999-08-10 2004-10-05 Texas Instruments Incorporated Packet reconstruction processes for packet communications
US6801499B1 (en) * 1999-08-10 2004-10-05 Texas Instruments Incorporated Diversity schemes for packet communications
US6678267B1 (en) 1999-08-10 2004-01-13 Texas Instruments Incorporated Wireless telephone with excitation reconstruction of lost packet
US6757256B1 (en) 1999-08-10 2004-06-29 Texas Instruments Incorporated Process of sending packets of real-time information
US7574351B2 (en) * 1999-12-14 2009-08-11 Texas Instruments Incorporated Arranging CELP information of one frame in a second packet
US7103538B1 (en) * 2002-06-10 2006-09-05 Mindspeed Technologies, Inc. Fixed code book with embedded adaptive code book
FI118835B (fi) * 2004-02-23 2008-03-31 Nokia Corp Koodausmallin valinta
US9058812B2 (en) * 2005-07-27 2015-06-16 Google Technology Holdings LLC Method and system for coding an information signal using pitch delay contour adjustment
EP2077551B1 (en) 2008-01-04 2011-03-02 Dolby Sweden AB Audio encoder and decoder
WO2012008891A1 (en) * 2010-07-16 2012-01-19 Telefonaktiebolaget L M Ericsson (Publ) Audio encoder and decoder and methods for encoding and decoding an audio signal

Family Cites Families (8)

* 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.
US4868867A (en) * 1987-04-06 1989-09-19 Voicecraft Inc. Vector excitation speech or audio coder for transmission or storage
US5359696A (en) * 1988-06-28 1994-10-25 Motorola Inc. Digital speech coder having improved sub-sample resolution long-term predictor
US5097508A (en) * 1989-08-31 1992-03-17 Codex Corporation Digital speech coder having improved long term lag parameter determination
CA2051304C (en) * 1990-09-18 1996-03-05 Tomohiko Taniguchi Speech coding and decoding system
US5271089A (en) * 1990-11-02 1993-12-14 Nec Corporation Speech parameter encoding method capable of transmitting a spectrum parameter at a reduced number of bits
ATE477571T1 (de) * 1991-06-11 2010-08-15 Qualcomm Inc Vocoder mit veränderlicher bitrate
US5233660A (en) * 1991-09-10 1993-08-03 At&T Bell Laboratories Method and apparatus for low-delay celp speech coding and decoding

Also Published As

Publication number Publication date
JP3073017B2 (ja) 2000-08-07
ES2110595T3 (es) 1998-02-16
DE69314389D1 (de) 1997-11-13
US5553191A (en) 1996-09-03
AU658053B2 (en) 1995-03-30
JPH06506544A (ja) 1994-07-21
BR9303964A (pt) 1994-08-02
SE469764B (sv) 1993-09-06
CA2106390A1 (en) 1993-07-28
WO1993015503A1 (en) 1993-08-05
FI934063A (fi) 1993-09-16
SE9200217D0 (sv) 1992-01-27
AU3465193A (en) 1993-09-01
DE69314389T2 (de) 1998-02-05
EP0577809B1 (en) 1997-10-08
FI934063A0 (fi) 1993-09-16
DK0577809T3 (da) 1998-05-25
EP0577809A1 (en) 1994-01-12
SE9200217L (sv) 1993-07-28
HK1003346A1 (en) 1998-10-23
TW227609B (es) 1994-08-01

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees