DE60311794C5 - Signalsynthese - Google Patents

Signalsynthese Download PDF

Info

Publication number
DE60311794C5
DE60311794C5 DE60311794.5A DE60311794A DE60311794C5 DE 60311794 C5 DE60311794 C5 DE 60311794C5 DE 60311794 A DE60311794 A DE 60311794A DE 60311794 C5 DE60311794 C5 DE 60311794C5
Authority
DE
Germany
Prior art keywords
input signal
signal
output signals
parameter
filtered
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
DE60311794.5A
Other languages
English (en)
Other versions
DE60311794D1 (en
DE60311794T2 (de
Inventor
J. BREEBAART Dirk
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 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=29252213&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE60311794(C5) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koninklijke Philips NV filed Critical Koninklijke Philips NV
Application granted granted Critical
Publication of DE60311794C5 publication Critical patent/DE60311794C5/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels

Abstract

A method of synthesizing a first and a second audio output signal (L, R) from an input signal (x), the method comprising:filtering the input signal (x) to generate a filtered signal;obtaining a correlation parameter (r) indicative of a desired correlation between the first and second output signals (L, R);obtaining a level parameter (c) indicative of a desired level difference between the first and second output signals (L, R); andtransforming the input signal (x) and the filtered signal by a matrixing operation into the first and second output signals (L, R), where the matrixing operation depends on the correlation parameter (r) and the level parameter (c) and wherein the matrixing operation comprises a common rotation by a predetermined angle of the first and second output signals in a space spanned by the input signal and the filtered input signal; and where the predetermined angle depends on the level parameter.

Description

  • betreffend das europäische Patent EP 1 500 082 (DE 603 11 794)
  • hat der 4. Senat (Nichtigkeitssenat) des Bundespatentgerichts auf Grund der mündlichen Verhandlung vom 28. April 2022
  • für Recht erkannt:
    • Das europäische Patent 1 500 082 wird mit Wirkung für das Hoheitsgebiet der Bundesrepublik Deutschland dadurch teilweise für nichtig erklärt, dass seine Ansprüche die folgende Fassung erhalten:

Claims (7)

  1. A method of synthesizing a first and a second audio output signal (L, R) from an input signal (x), the method comprising: filtering the input signal (x) to generate a filtered signal; obtaining a correlation parameter (r) indicative of a desired correlation between the first and second output signals (L, R); obtaining a level parameter (c) indicative of a desired level difference between the first and second output signals (L, R); and transforming the input signal (x) and the filtered signal by a matrixing operation into the first and second output signals (L, R), where the matrixing operation depends on the correlation parameter (r) and the level parameter (c) and wherein the matrixing operation comprises a common rotation by a predetermined angle of the first and second output signals in a space spanned by the input signal and the filtered input signal; and where the predetermined angle depends on the level parameter.
  2. A method according to claim 1, wherein the predetermined angle is selected to maximize a total contribution of the input signal to the first and second output signals.
  3. A method according to claim 1, further comprising scaling each of the first and second output signals to said desired level difference between the first and second output signals.
  4. A method according to claim 1, wherein the filtering of the input signal comprises all-pass filtering the input signal.
  5. A method according to claim 4, wherein the all-pass filter comprises a frequency-dependant delay.
  6. An arrangement for synthesizing. a first and a second audio output signal (L, R) from an input signal (x), the arrangement comprising: filter means (201) for filtering the input signal (x) to generate a filtered signal; means (202) for obtaining a correlation parameter (r) indicative of a desired correlation between the first and second output signals (L, R); means (202) for obtaining a level parameter (c) indicative of a desired level difference between the first and second output signals (L, R); means for transforming (203) the input signal (x) and the filtered signal by a matrixing operation into the first and second output signals (L, R), where the matrixing operation depends on the correlation parameter (r) and the level parameter (c) and wherein the matrixing operation comprises a common rotation by a predetermined angle of the first and second output signals in a space spanned by the input signal and the filtered input signal; and where the predetermined angle depends on the level parameter.
  7. An apparatus for supplying a decoded audio signal, the apparatus comprising an input unit for receiving an encoded audio signal; a decoder for decoding the encoded audio signal, the decoder comprising an arrangement for synthesizing a first and a second audio signal according to claim 6; and an output unit for providing the decoded first and second audio signal.
DE60311794.5A 2002-04-22 2003-04-22 Signalsynthese Expired - Lifetime DE60311794C5 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP02076588 2002-04-22
EP02076588 2002-04-22
EP02077863 2002-07-12
EP02077863 2002-07-12
PCT/IB2003/001586 WO2003090206A1 (en) 2002-04-22 2003-04-22 Signal synthesizing

Publications (1)

Publication Number Publication Date
DE60311794C5 true DE60311794C5 (de) 2022-11-10

Family

ID=29252213

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60311794T Expired - Lifetime DE60311794T2 (de) 2002-04-22 2003-04-22 Signalsynthese
DE60311794.5A Expired - Lifetime DE60311794C5 (de) 2002-04-22 2003-04-22 Signalsynthese

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE60311794T Expired - Lifetime DE60311794T2 (de) 2002-04-22 2003-04-22 Signalsynthese

Country Status (11)

Country Link
US (2) US7933415B2 (de)
EP (1) EP1500082B1 (de)
JP (1) JP4401173B2 (de)
KR (1) KR101021076B1 (de)
CN (1) CN1312660C (de)
AT (1) ATE354161T1 (de)
AU (1) AU2003216682A1 (de)
BR (2) BRPI0304541B1 (de)
DE (2) DE60311794T2 (de)
ES (1) ES2280736T3 (de)
WO (1) WO2003090206A1 (de)

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0304541B1 (pt) 2002-04-22 2017-07-04 Koninklijke Philips N. V. Method and arrangement for synthesizing a first and a second output sign from an input sign, and, device for providing a decoded audio signal
US7725324B2 (en) 2003-12-19 2010-05-25 Telefonaktiebolaget Lm Ericsson (Publ) Constrained filter encoding of polyphonic signals
US7809579B2 (en) 2003-12-19 2010-10-05 Telefonaktiebolaget Lm Ericsson (Publ) Fidelity-optimized variable frame length encoding
SE527713C2 (sv) 2003-12-19 2006-05-23 Ericsson Telefon Ab L M Kodning av polyfoniska signaler med villkorsbegränsade filter
US20090299756A1 (en) * 2004-03-01 2009-12-03 Dolby Laboratories Licensing Corporation Ratio of speech to non-speech audio such as for elderly or hearing-impaired listeners
WO2005086139A1 (en) 2004-03-01 2005-09-15 Dolby Laboratories Licensing Corporation Multichannel audio coding
EP1735778A1 (de) * 2004-04-05 2006-12-27 Koninklijke Philips Electronics N.V. Stereocodierungs- und decodierungsverfahren und vorrichtungen dafür
SE0400998D0 (sv) * 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Method for representing multi-channel audio signals
CA2572805C (en) * 2004-07-02 2013-08-13 Matsushita Electric Industrial Co., Ltd. Audio signal decoding device and audio signal encoding device
KR100745688B1 (ko) 2004-07-09 2007-08-03 한국전자통신연구원 다채널 오디오 신호 부호화/복호화 방법 및 장치
CN101014998B (zh) * 2004-07-14 2011-02-23 皇家飞利浦电子股份有限公司 音频通道转换
EP1776844B1 (de) 2004-07-23 2014-06-25 Koninklijke Philips N.V. System für temperaturpriorisierte farbsteuerung einer festkörperbeleuchtungseinheit
TWI393121B (zh) 2004-08-25 2013-04-11 Dolby Lab Licensing Corp 處理一組n個聲音信號之方法與裝置及與其相關聯之電腦程式
TWI497485B (zh) 2004-08-25 2015-08-21 Dolby Lab Licensing Corp 用以重塑經合成輸出音訊信號之時域包絡以更接近輸入音訊信號之時域包絡的方法
WO2006022308A1 (ja) * 2004-08-26 2006-03-02 Matsushita Electric Industrial Co., Ltd. マルチチャネル信号符号化装置およびマルチチャネル信号復号装置
US8046217B2 (en) * 2004-08-27 2011-10-25 Panasonic Corporation Geometric calculation of absolute phases for parametric stereo decoding
CN101010724B (zh) * 2004-08-27 2011-05-25 松下电器产业株式会社 音频编码器
BRPI0515128A (pt) * 2004-08-31 2008-07-08 Matsushita Electric Ind Co Ltd aparelho de geração de sinal estéreo e método de geração de sinal estéreo
CN101015230B (zh) 2004-09-06 2012-09-05 皇家飞利浦电子股份有限公司 音频信号增强
SE0402650D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Improved parametric stereo compatible coding of spatial audio
RU2007120056A (ru) * 2004-11-30 2008-12-10 Мацусита Электрик Индастриал Ко. Устройство стереокодирования, устройство стереодекодирования и способы стереокодирования и стереодекодирования
EP1691348A1 (de) 2005-02-14 2006-08-16 Ecole Polytechnique Federale De Lausanne Parametrische kombinierte Kodierung von Audio-Quellen
US7573912B2 (en) * 2005-02-22 2009-08-11 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschunng E.V. Near-transparent or transparent multi-channel encoder/decoder scheme
US9626973B2 (en) 2005-02-23 2017-04-18 Telefonaktiebolaget L M Ericsson (Publ) Adaptive bit allocation for multi-channel audio encoding
ATE521143T1 (de) 2005-02-23 2011-09-15 Ericsson Telefon Ab L M Adaptive bitzuweisung für die mehrkanal- audiokodierung
EP1905002B1 (de) 2005-05-26 2013-05-22 LG Electronics Inc. Verfahren und vorrichtung zum decodieren von audiosignalen
JP4988717B2 (ja) 2005-05-26 2012-08-01 エルジー エレクトロニクス インコーポレイティド オーディオ信号のデコーディング方法及び装置
US8284961B2 (en) * 2005-07-15 2012-10-09 Panasonic Corporation Signal processing device
JP5113052B2 (ja) 2005-07-29 2013-01-09 エルジー エレクトロニクス インコーポレイティド 符号化されたオーディオ信号の生成方法及びオーディオ信号の処理方法
CN101233570B (zh) * 2005-07-29 2011-06-22 Lg电子株式会社 生成经编码的音频信号的方法以及处理音频信号的方法
TWI396188B (zh) 2005-08-02 2013-05-11 Dolby Lab Licensing Corp 依聆聽事件之函數控制空間音訊編碼參數的技術
KR100857119B1 (ko) * 2005-10-05 2008-09-05 엘지전자 주식회사 신호 처리 방법 및 이의 장치, 그리고 인코딩 및 디코딩방법 및 이의 장치
WO2007040361A1 (en) 2005-10-05 2007-04-12 Lg Electronics Inc. Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
US20070092086A1 (en) 2005-10-24 2007-04-26 Pang Hee S Removing time delays in signal paths
JP4787331B2 (ja) 2006-01-19 2011-10-05 エルジー エレクトロニクス インコーポレイティド メディア信号の処理方法及び装置
WO2007088853A1 (ja) * 2006-01-31 2007-08-09 Matsushita Electric Industrial Co., Ltd. 音声符号化装置、音声復号装置、音声符号化システム、音声符号化方法及び音声復号方法
CA2637722C (en) 2006-02-07 2012-06-05 Lg Electronics Inc. Apparatus and method for encoding/decoding signal
EP1853092B1 (de) 2006-05-04 2011-10-05 LG Electronics, Inc. Verbesserung von Stereo-Audiosignalen mittels Neuabmischung
EP1855457B1 (de) * 2006-05-10 2009-07-08 Harman Becker Automotive Systems GmbH Kompensation von Mehrkanalechos durch Dekorrelation
EP2084901B1 (de) 2006-10-12 2015-12-09 LG Electronics Inc. Vorrichtung zum verarbeiten eines mischsignals und verfahren dafür
EP2172929B1 (de) * 2007-06-27 2018-08-01 NEC Corporation Übertragunseinheit, system zur signalanalysesteuerung und verfahren dafür
GB2453117B (en) 2007-09-25 2012-05-23 Motorola Mobility Inc Apparatus and method for encoding a multi channel audio signal
KR101464977B1 (ko) * 2007-10-01 2014-11-25 삼성전자주식회사 메모리 관리 방법, 및 멀티 채널 데이터의 복호화 방법 및장치
KR101444102B1 (ko) * 2008-02-20 2014-09-26 삼성전자주식회사 스테레오 오디오의 부호화, 복호화 방법 및 장치
RU2497204C2 (ru) * 2008-05-23 2013-10-27 Конинклейке Филипс Электроникс Н.В. Устройство параметрического стереофонического повышающего микширования, параметрический стереофонический декодер, устройство параметрического стереофонического понижающего микширования, параметрический стереофонический кодер
ES2387867T3 (es) * 2008-06-26 2012-10-03 FRANCE TéLéCOM Síntesis espacial de señales de audio multicanal
US8233629B2 (en) * 2008-09-04 2012-07-31 Dts, Inc. Interaural time delay restoration system and method
EP2169666B1 (de) * 2008-09-25 2015-07-15 Lg Electronics Inc. Verfahren und Vorrichtung zur Verarbeitung eines Signals
EP2169664A3 (de) * 2008-09-25 2010-04-07 LG Electronics Inc. Verfahren und Vorrichtung zur Verarbeitung eines Signals
EP2169665B1 (de) * 2008-09-25 2018-05-02 LG Electronics Inc. Verfahren und Vorrichtung zur Verarbeitung eines Signals
JP5296090B2 (ja) * 2008-10-16 2013-09-25 パイオニア株式会社 測定用信号生成装置、測定用信号生成方法、及び測定用信号生成プログラム、並びに記録媒体
JP5309944B2 (ja) * 2008-12-11 2013-10-09 富士通株式会社 オーディオ復号装置、方法、及びプログラム
KR20110022252A (ko) * 2009-08-27 2011-03-07 삼성전자주식회사 스테레오 오디오의 부호화, 복호화 방법 및 장치
EP2489040A1 (de) * 2009-10-16 2012-08-22 France Telecom Optimierte parametrische stereodecodierung
EP2369861B1 (de) * 2010-03-25 2016-07-27 Nxp B.V. Verarbeitung eines Mehrkanal-Audiosignals
CH703771A2 (de) * 2010-09-10 2012-03-15 Stormingswiss Gmbh Vorrichtung und Verfahren zur zeitlichen Auswertung und Optimierung von stereophonen oder pseudostereophonen Signalen.
FR2966634A1 (fr) * 2010-10-22 2012-04-27 France Telecom Codage/decodage parametrique stereo ameliore pour les canaux en opposition de phase
CN104364844B (zh) * 2012-06-08 2018-12-04 英特尔公司 针对长延迟回声的回声消除算法
CN110010140B (zh) 2013-04-05 2023-04-18 杜比国际公司 立体声音频编码器和解码器
US9659569B2 (en) * 2013-04-26 2017-05-23 Nokia Technologies Oy Audio signal encoder
CN105594227B (zh) 2013-07-30 2018-01-12 Dts（英属维尔京群岛）有限公司 利用恒定功率成对平移的矩阵解码器
WO2015073597A1 (en) * 2013-11-13 2015-05-21 Om Audio, Llc Signature tuning filters
CN105981411B (zh) 2013-11-27 2018-11-30 Dts（英属维尔京群岛）有限公司 用于高声道计数的多声道音频的基于多元组的矩阵混合
EP3095117B1 (de) 2014-01-13 2018-08-22 Nokia Technologies Oy Multikanal-audiosignalklassifizierer
CN106067819B (zh) * 2016-06-23 2021-11-26 广州市迪声音响有限公司 一种基于分量式矩阵算法的信号处理系统
US10224042B2 (en) * 2016-10-31 2019-03-05 Qualcomm Incorporated Encoding of multiple audio signals
PT3539125T (pt) 2016-11-08 2023-01-27 Fraunhofer Ges Forschung Aparelho e método para codificar ou descodificar um sinal multicanal utilizando um ganho side e um ganho residual
CN117612542A (zh) 2017-07-28 2024-02-27 弗劳恩霍夫应用研究促进协会 用于使用宽频带滤波器生成的填充信号对已编码的多声道信号进行编码或解码的装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172415A (en) * 1990-06-08 1992-12-15 Fosgate James W Surround processor
JPH06178164A (ja) * 1992-12-11 1994-06-24 Matsushita Electric Ind Co Ltd 適応等化処理における安定性および収束速度の適応制御方法
CN1059529C (zh) * 1994-06-23 2000-12-13 Ntt移动通信网株式会社 用于接收码分多址信号的方法和装置
US6895093B1 (en) * 1998-03-03 2005-05-17 Texas Instruments Incorporated Acoustic echo-cancellation system
US6658050B1 (en) * 1998-09-11 2003-12-02 Ericsson Inc. Channel estimates in a CDMA system using power control bits
JP2001109497A (ja) 1999-10-04 2001-04-20 Matsushita Electric Ind Co Ltd オーディオ信号符号化装置およびオーディオ信号符号化方法
JP2001188599A (ja) 1999-10-19 2001-07-10 Matsushita Electric Ind Co Ltd オーディオ信号復号装置
JP2001142493A (ja) 1999-11-16 2001-05-25 Matsushita Electric Ind Co Ltd オーディオ信号高能率符号化装置
US6973184B1 (en) * 2000-07-11 2005-12-06 Cisco Technology, Inc. System and method for stereo conferencing over low-bandwidth links
KR100809310B1 (ko) * 2000-07-19 2008-03-04 코닌클리케 필립스 일렉트로닉스 엔.브이. 스테레오 서라운드 및/또는 오디오 센터 신호를 구동하기 위한 다중-채널 스테레오 컨버터
DE10041512B4 (de) * 2000-08-24 2005-05-04 Infineon Technologies Ag Verfahren und Vorrichtung zur künstlichen Erweiterung der Bandbreite von Sprachsignalen
EP1275271A2 (de) * 2000-12-22 2003-01-15 Koninklijke Philips Electronics N.V. Mehrkanaltonkonverter
SE0202159D0 (sv) 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
BRPI0304541B1 (pt) 2002-04-22 2017-07-04 Koninklijke Philips N. V. Method and arrangement for synthesizing a first and a second output sign from an input sign, and, device for providing a decoded audio signal
ES2300567T3 (es) * 2002-04-22 2008-06-16 Koninklijke Philips Electronics N.V. Representacion parametrica de audio espacial.
US8284961B2 (en) 2005-07-15 2012-10-09 Panasonic Corporation Signal processing device
CN101233570B (zh) 2005-07-29 2011-06-22 Lg电子株式会社 生成经编码的音频信号的方法以及处理音频信号的方法

Also Published As

Publication number Publication date
US8798275B2 (en) 2014-08-05
EP1500082B1 (de) 2007-02-14
EP1500082A1 (de) 2005-01-26
ATE354161T1 (de) 2007-03-15
BRPI0304541B1 (pt) 2017-07-04
DE60311794D1 (en) 2007-03-29
US20050254446A1 (en) 2005-11-17
CN1312660C (zh) 2007-04-25
US20110166866A1 (en) 2011-07-07
JP2005523624A (ja) 2005-08-04
DE60311794T2 (de) 2007-10-31
BR0304541A (pt) 2004-07-20
KR20040101552A (ko) 2004-12-02
CN1647157A (zh) 2005-07-27
WO2003090206A1 (en) 2003-10-30
AU2003216682A1 (en) 2003-11-03
ES2280736T3 (es) 2007-09-16
JP4401173B2 (ja) 2010-01-20
KR101021076B1 (ko) 2011-03-11
US7933415B2 (en) 2011-04-26

Similar Documents

Publication Publication Date Title
DE60311794C5 (de) Signalsynthese
US6027463A (en) Music massager
TWI318079B (en) Individual channel shaping for bcc schemes and the like
DE69836084D1 (de) Ein verteiltes stereosystem
MY148081A (en) Cultivated agarwood
ATE215295T1 (de) Verfahren und vorrichtung zur codierung und decodierung mehrere tonkanäle mit geringer bitrate
ATE284102T1 (de) Verfahren, system und gerät zur übertragungssteuerung
ATE212771T1 (de) Verfahren und system zur ofdm-mehrträger- übertragung von digitalen rundfunksignalen
ATE350879T1 (de) Kompatible mehrkanal-codierung/-decodierung
EP1315150A3 (de) Adaptive Postfilterverfahren und Vorrichtungen zur Sprachdekodierung
DE69906545D1 (de) Kristalline molekularsiebe
IL127397A0 (en) Cyclic chiral phosphine ligands
DE69214523D1 (de) Dekodierer für variable anzahl von kanaldarstellungen mehrdimensionaler schallfelder
JP2005509926A (ja) 知覚ノイズの置換え
EP0825800A3 (de) Verfahren und Vorrichtung zum Generieren eines Mehrton-Signals aus einem Mono-Signal
DE59914384D1 (de) Leitungsabschlussvorrichtung für eine teilnehmeranschlussleitung
DE602004003959D1 (de) Standardisierte themabehandlung für das digitale fernsehen
TW336325B (en) Copper wire and process for making copper wire
MX9709236A (es) Transductor de bocina acustica con un difusor tipo conico que tiene un perfil exponencial en madera.
CA2393154A1 (en) Prenatal-to-infant monitoring device
CA2238069A1 (en) Audio noise reduction system implemented through digital signal processing
KR980006959A (ko) 음성처리장치의 피치 추출방법
DE60221931D1 (de) Mehrzweckmässiges Ausgangsmaterial für Ersatzhonig und flüssige Nahrungsmittel
JP3133353B2 (ja) 音声符号化装置
WO1995017418A3 (en) NOVEL INTERMEDIATES FOR THE SYNTHESIS OF L-ASPARTYL-D-α-AMINOALKANOYL-(S)-N-α-ALKYLBENZYL AMIDES USEFUL AS ARTIFICIAL SWEETENERS