ES2138076T3 - Sistema de transmision que comprende al menos un codificador. - Google Patents

Sistema de transmision que comprende al menos un codificador.

Info

Publication number
ES2138076T3
ES2138076T3 ES94912661T ES94912661T ES2138076T3 ES 2138076 T3 ES2138076 T3 ES 2138076T3 ES 94912661 T ES94912661 T ES 94912661T ES 94912661 T ES94912661 T ES 94912661T ES 2138076 T3 ES2138076 T3 ES 2138076T3
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
ES94912661T
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 ES2138076T3 publication Critical patent/ES2138076T3/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 DESCRIBE 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" CON ARITMETICA DE PUNTO FIJO.
ES94912661T 1993-05-05 1994-05-02 Sistema de transmision que comprende al menos un codificador. Expired - Lifetime ES2138076T3 (es)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ES2138076T3 true ES2138076T3 (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 Before (1)

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.

Country Status (12)

Country Link
US (2) US5751902A (es)
EP (2) EP0649557B1 (es)
JP (2) JP3509862B2 (es)
KR (2) KR100346963B1 (es)
CN (3) CN1113332C (es)
CA (2) CA2137925C (es)
DE (2) DE69420221T2 (es)
ES (2) ES2138077T3 (es)
RU (2) RU2138030C1 (es)
SG (1) SG55188A1 (es)
UA (2) UA41893C2 (es)
WO (2) WO1994025960A1 (es)

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RU2239867C2 (ru) * 1999-04-29 2004-11-10 Уолтер Э. ПЕЛТОН Устройство, способы и компьютерные программные продукты для определения коэффициентов функции с уменьшенной задержкой
KR100743534B1 (ko) * 2000-01-07 2007-07-27 코닌클리케 필립스 일렉트로닉스 엔.브이. 디지털 정보를 전송하는 전송장치 및 전송방법
RU2248671C2 (ru) * 2000-12-25 2005-03-20 Корпорация "Самсунг Электроникс" Способ и устройство определения скорости передачи данных
JP4443118B2 (ja) * 2001-05-02 2010-03-31 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 逆フィルタリング方法、合成フィルタリング方法、逆フィルタ装置、合成フィルタ装置、およびこのようなフィルタ装置を有する装置
RU2319223C2 (ru) * 2001-11-30 2008-03-10 Конинклейке Филипс Электроникс Н.В. Кодирование сигнала
JP3748261B2 (ja) * 2003-06-17 2006-02-22 沖電気工業株式会社 Ａｄｐｃｍ方式復号器
BRPI0412717A (pt) * 2003-07-18 2006-09-26 Koninkl Philips Electronics Nv métodos para codificar um sinal e para decodificar um fluxo de áudio, codoficador de áudio, reprodutor de áudio, sistema de áudio, fluxo de áudio, e, meio de armazenagem
CN101494460B (zh) * 2003-09-02 2012-07-11 日本电信电话株式会社 浮点信号的编码方法、解码方法及其编码器、解码器
CN1914668B (zh) * 2004-01-28 2010-06-16 皇家飞利浦电子股份有限公司 用于信号时间标度的方法及设备
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
ATE532350T1 (de) * 2006-03-24 2011-11-15 Dolby Sweden Ab Erzeugung räumlicher heruntermischungen aus parametrischen darstellungen mehrkanaliger signale
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
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Also Published As

Publication number Publication date
KR950702731A (ko) 1995-07-29
WO1994025961A1 (en) 1994-11-10
DE69420220T2 (de) 2000-07-06
US5657350A (en) 1997-08-12
DE69420220D1 (de) 1999-09-30
CN1516496A (zh) 2004-07-28
CN1109263A (zh) 1995-09-27
JP3509861B2 (ja) 2004-03-22
RU2138030C1 (ru) 1999-09-20
JPH08501892A (ja) 1996-02-27
HK1019284A1 (en) 2000-01-28
JPH08501891A (ja) 1996-02-27
CN1131508C (zh) 2003-12-17
EP0649557A1 (en) 1995-04-26
RU2123728C1 (ru) 1998-12-20
UA41893C2 (uk) 2001-10-15
CN1109264A (zh) 1995-09-27
EP0649558B1 (en) 1999-08-25
DE69420221D1 (de) 1999-09-30
CA2137926A1 (en) 1994-11-10
CA2137925A1 (en) 1994-11-10
KR100332850B1 (ko) 2002-10-18
CA2137926C (en) 2005-06-28
HK1012750A1 (en) 1999-08-06
EP0649557B1 (en) 1999-08-25
US5751902A (en) 1998-05-12
EP0649558A1 (en) 1995-04-26
WO1994025960A1 (en) 1994-11-10
JP3509862B2 (ja) 2004-03-22
KR100346963B1 (ko) 2002-11-13
CA2137925C (en) 2005-06-28
CN1113332C (zh) 2003-07-02
SG55188A1 (en) 2000-03-21
DE69420221T2 (de) 2000-07-06
KR950702730A (ko) 1995-07-29
ES2138077T3 (es) 2000-01-01
UA41892C2 (uk) 2001-10-15
CN1251176C (zh) 2006-04-12

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