ES2138077T3 - Sistema de transmision que comprende al menos un codificador. - Google Patents

Sistema de transmision que comprende al menos un codificador.

Info

Publication number
ES2138077T3
ES2138077T3 ES94912662T ES94912662T ES2138077T3 ES 2138077 T3 ES2138077 T3 ES 2138077T3 ES 94912662 T ES94912662 T ES 94912662T ES 94912662 T ES94912662 T ES 94912662T ES 2138077 T3 ES2138077 T3 ES 2138077T3
Authority
ES
Spain
Prior art keywords
encoder
transmission system
system including
adaptive prediction
prediction filter
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
ES94912662T
Other languages
English (en)
Inventor
Rudolf Hofmann
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of ES2138077T3 publication Critical patent/ES2138077T3/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
    • G10L19/26—Pre-filtering or post-filtering
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/06—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being correlation coefficients
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/90—Pitch determination of speech signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H03H21/0043—Adaptive algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

SE PRESENTA UN SISTEMA DE TRANSMISION QUE TIENE AL MENOS UN CODIFICADOR (101) PARA CODIFICAR UNA SEÑAL (10A). EL SISTEMA COMPRENDE ADEMAS, AL MENOS, UN TRANSMISOR (102), AL MENOS UN RECEPTOR (103) Y, AL MENOS, UN DECODIFICADOR (104). AL MENOS PARA UN CODIFICADOR (101) SE DISPONE, AL MENOS, DE UN FILTRO DE PREDICCION ADAPTIVO (10A, 10B), MEDIANTE EL CUAL SE CODIFICAN SEÑALES ACUSTICAS O DE PALABRAS, EN TANTO QUE SE REDUCEN SUS TASAS DE BITS (VELOCIDADES A LAS QUE SE TRANSMITEN LOS BITS). LOS COEFICIENTES DE FILTRO PARA UN FILTRO (10A, 10B) DE PREDICCION ADAPTIVO SE DETERMINAN RECURSIVAMENTE DETERMINANDO CONFORME A LA "LEVINSON-DIRBIN RECURSION" EN ARITMETICA DE PUNTO FIJO.
ES94912662T 1993-05-05 1994-05-02 Sistema de transmision que comprende al menos un codificador. Expired - Lifetime ES2138077T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4314921 1993-05-05

Publications (1)

Publication Number Publication Date
ES2138077T3 true ES2138077T3 (es) 2000-01-01

Family

ID=6487280

Family Applications (2)

Application Number Title Priority Date Filing Date
ES94912662T Expired - Lifetime ES2138077T3 (es) 1993-05-05 1994-05-02 Sistema de transmision que comprende al menos un codificador.
ES94912661T Expired - Lifetime ES2138076T3 (es) 1993-05-05 1994-05-02 Sistema de transmision que comprende al menos un codificador.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES94912661T Expired - Lifetime ES2138076T3 (es) 1993-05-05 1994-05-02 Sistema de transmision que comprende al menos un codificador.

Country Status (13)

Country Link
US (2) US5657350A (es)
EP (2) EP0649558B1 (es)
JP (2) JP3509862B2 (es)
KR (2) KR100346963B1 (es)
CN (3) CN1131508C (es)
CA (2) CA2137926C (es)
DE (2) DE69420220T2 (es)
ES (2) ES2138077T3 (es)
HK (2) HK1012750A1 (es)
RU (2) RU2123728C1 (es)
SG (1) SG55188A1 (es)
UA (2) UA41892C2 (es)
WO (2) WO1994025960A1 (es)

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JP3522012B2 (ja) * 1995-08-23 2004-04-26 沖電気工業株式会社 コード励振線形予測符号化装置
US6088445A (en) * 1997-08-01 2000-07-11 Crystal Semiconductor Corp. Adaptive filter system having mixed fixed point or floating point and block scale floating point operators
US5905659A (en) * 1997-10-07 1999-05-18 Rose; Ralph E. Training a recursive filter by use of derivative function
US5974434A (en) * 1997-10-07 1999-10-26 Ralph E. Rose Method and apparatus for automatically tuning the parameters of a feedback control system
US6012025A (en) * 1998-01-28 2000-01-04 Nokia Mobile Phones Limited Audio coding method and apparatus using backward adaptive prediction
US6014093A (en) * 1998-02-27 2000-01-11 Hayes; Adam T. Pulse coding system
DE19824104B4 (de) * 1998-04-27 2009-12-24 Abb Research Ltd. Nichtlinearer Widerstand mit Varistorverhalten
DE19845888A1 (de) * 1998-10-06 2000-05-11 Bosch Gmbh Robert Verfahren zur Codierung oder Decodierung von Sprachsignalabtastwerten sowie Coder bzw. Decoder
BR0008826A (pt) * 2000-01-07 2001-12-18 Koninkl Philips Electronics Nv Dispositivo e processo de transmissão paratransmitir um sinal de informação digital atravésde um meio de transmissão, e, receptor parareceber um sinal de transmissão e gerar um sinalde informação digital a partir do mesmo
JP3748261B2 (ja) * 2003-06-17 2006-02-22 沖電気工業株式会社 Ａｄｐｃｍ方式復号器
JP4049793B2 (ja) * 2003-09-02 2008-02-20 日本電信電話株式会社 浮動小数点信号可逆符号化方法、復号化方法、及びそれらの装置、プログラム及びその記録媒体
DE102004007185B3 (de) * 2004-02-13 2005-06-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Prädiktives Codierungsschema
US7392195B2 (en) * 2004-03-25 2008-06-24 Dts, Inc. Lossless multi-channel audio codec
US7961890B2 (en) 2005-04-15 2011-06-14 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung, E.V. Multi-channel hierarchical audio coding with compact side information
US7734466B2 (en) * 2005-06-20 2010-06-08 Motorola, Inc. Reduced complexity recursive least square lattice structure adaptive filter by means of limited recursion of the backward and forward error prediction squares
DE102005039621A1 (de) * 2005-08-19 2007-03-01 Micronas Gmbh Verfahren und Vorrichtung zur adaptiven Reduktion von Rausch- und Hintergrundsignalen in einem sprachverarbeitenden System
US8195462B2 (en) * 2006-02-16 2012-06-05 At&T Intellectual Property Ii, L.P. System and method for providing large vocabulary speech processing based on fixed-point arithmetic
WO2007110103A1 (en) * 2006-03-24 2007-10-04 Dolby Sweden Ab Generation of spatial downmixes from parametric representations of multi channel signals
US9048784B2 (en) * 2007-04-03 2015-06-02 General Motors Llc Method for data communication via a voice channel of a wireless communication network using continuous signal modulation
JPWO2009050896A1 (ja) * 2007-10-16 2011-02-24 パナソニック株式会社 ストリーム合成装置、復号装置、方法
US8704186B2 (en) * 2009-11-17 2014-04-22 Lawrence Livermore National Security, Llc Active noise canceling system for mechanically cooled germanium radiation detectors
WO2011097199A2 (en) * 2010-02-04 2011-08-11 Sony Corporation Recursive adaptive interpolation filters (raif)
KR101956284B1 (ko) * 2011-06-30 2019-03-08 엘지전자 주식회사 보간 방법 및 이를 이용한 예측 방법
BR122020015614B1 (pt) 2014-04-17 2022-06-07 Voiceage Evs Llc Método e dispositivo para interpolar parâmetros de filtro de predição linear em um quadro de processamento de sinal sonoro atual seguindo um quadro de processamento de sinal sonoro anterior
EP3040852A1 (en) * 2014-12-31 2016-07-06 Nxp B.V. Scaling for block floating-point data
US20200210839A1 (en) * 2018-12-31 2020-07-02 Microsoft Technology Licensing, Llc Neural network activation compression with outlier block floating-point

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US3619586A (en) * 1968-11-25 1971-11-09 Research Corp Universal digital filter for linear discrete systems
US3842250A (en) * 1973-08-29 1974-10-15 Sperry Rand Corp Circuit for implementing rounding in add/subtract logic networks
US4509150A (en) * 1980-12-31 1985-04-02 Mobil Oil Corporation Linear prediction coding for compressing of seismic data
FR2515901A1 (fr) * 1981-11-04 1983-05-06 Trt Telecom Radio Electr Systeme de transmission mic-differentiel avec prediction adaptative
NL8304214A (nl) * 1983-12-07 1985-07-01 Philips Nv Werkwijze voor het korrigeren van foute waarden van monsters van een equidistant bemonsterd signaal en inrichting voor het uitvoeren van de werkwijze.
US4831636A (en) * 1985-06-28 1989-05-16 Fujitsu Limited Coding transmission equipment for carrying out coding with adaptive quantization
US4872132A (en) * 1987-03-13 1989-10-03 Zoran Corporation Method and means for block floating point arithmetic
US5142656A (en) * 1989-01-27 1992-08-25 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5218621A (en) * 1991-04-04 1993-06-08 Motorola, Inc. Adaptive digital equalization filter

Also Published As

Publication number Publication date
CN1131508C (zh) 2003-12-17
RU2138030C1 (ru) 1999-09-20
CN1109264A (zh) 1995-09-27
CN1251176C (zh) 2006-04-12
EP0649558A1 (en) 1995-04-26
JP3509861B2 (ja) 2004-03-22
KR100346963B1 (ko) 2002-11-13
DE69420220T2 (de) 2000-07-06
RU2123728C1 (ru) 1998-12-20
KR950702731A (ko) 1995-07-29
DE69420220D1 (de) 1999-09-30
KR100332850B1 (ko) 2002-10-18
US5657350A (en) 1997-08-12
CA2137925C (en) 2005-06-28
UA41893C2 (uk) 2001-10-15
EP0649557B1 (en) 1999-08-25
HK1012750A1 (en) 1999-08-06
CN1516496A (zh) 2004-07-28
EP0649557A1 (en) 1995-04-26
JPH08501892A (ja) 1996-02-27
WO1994025960A1 (en) 1994-11-10
CA2137926C (en) 2005-06-28
DE69420221D1 (de) 1999-09-30
DE69420221T2 (de) 2000-07-06
CA2137925A1 (en) 1994-11-10
UA41892C2 (uk) 2001-10-15
HK1019284A1 (en) 2000-01-28
WO1994025961A1 (en) 1994-11-10
JP3509862B2 (ja) 2004-03-22
US5751902A (en) 1998-05-12
CN1109263A (zh) 1995-09-27
CA2137926A1 (en) 1994-11-10
KR950702730A (ko) 1995-07-29
JPH08501891A (ja) 1996-02-27
EP0649558B1 (en) 1999-08-25
CN1113332C (zh) 2003-07-02
ES2138076T3 (es) 2000-01-01
SG55188A1 (en) 2000-03-21

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