BRPI0416577A - método para codificação e decodificação de respostas a impulso de sinais de áudio - Google Patents

método para codificação e decodificação de respostas a impulso de sinais de áudio

Info

Publication number
BRPI0416577A
BRPI0416577A BRPI0416577-2A BRPI0416577A BRPI0416577A BR PI0416577 A BRPI0416577 A BR PI0416577A BR PI0416577 A BRPI0416577 A BR PI0416577A BR PI0416577 A BRPI0416577 A BR PI0416577A
Authority
BR
Brazil
Prior art keywords
impulse responses
control parameter
encoding
audio signals
beeps
Prior art date
Application number
BRPI0416577-2A
Other languages
English (en)
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of BRPI0416577A publication Critical patent/BRPI0416577A/pt

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/0091—Means for obtaining special acoustic effects
    • 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
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/011—Files or data streams containing coded musical information, e.g. for transmission
    • G10H2240/046—File format, i.e. specific or non-standard musical file format used in or adapted for electrophonic musical instruments, e.g. in wavetables
    • G10H2240/066—MPEG audio-visual compression file formats, e.g. MPEG-4 for coding of audio-visual objects
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/171—Transmission of musical instrument data, control or status information; Transmission, remote access or control of music data for electrophonic musical instruments
    • G10H2240/281—Protocol or standard connector for transmission of analog or digital data to or from an electrophonic musical instrument
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/055—Filters for musical processing or musical effects; Filter responses, filter architecture, filter coefficients or control parameters therefor
    • G10H2250/111—Impulse response, i.e. filters defined or specified by their temporal impulse response features, e.g. for echo or reverberation applications
    • G10H2250/115—FIR impulse, e.g. for echoes or room acoustics, the shape of the impulse response is specified in particular according to delay times
    • 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

Landscapes

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

Abstract

"MéTODO PARA CODIFICAçãO E DECOFICAçãO DE RESPOSTAS A IMPULSO DE SINAIS DE áUDIO". A transmissão e o uso de respostas a impulso do ambiente reais, isso é, medidas para a reprodução de sinais sonoros com essa característica de ambiente compatível com o padrão MPEG-4 são possíveis pela inserção de respostas a impulso em múltiplos campos de parâmetro de controle sucessivos (15, 16, 17, 18) , especialmente o conjunto params ¢128!. Um primeiro campo de parâmetro de controle (15) contém informação sobre o número e o conteúdo dos campos seguintes. Para a apresentação dos sinais sonoros o conteúdo dos campos de parâmetro de controle sucessivos é separado, armazenado em uma memória adicional em um nó (12) e utilizado durante o cálculo da característica do ambiente.
BRPI0416577-2A 2003-12-02 2004-11-18 método para codificação e decodificação de respostas a impulso de sinais de áudio BRPI0416577A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03027638 2003-12-02
PCT/EP2004/013123 WO2005055193A1 (en) 2003-12-02 2004-11-18 Method for coding and decoding impulse responses of audio signals

Publications (1)

Publication Number Publication Date
BRPI0416577A true BRPI0416577A (pt) 2007-01-30

Family

ID=34639271

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0416577-2A BRPI0416577A (pt) 2003-12-02 2004-11-18 método para codificação e decodificação de respostas a impulso de sinais de áudio

Country Status (8)

Country Link
US (1) US7894610B2 (pt)
EP (1) EP1690251B1 (pt)
JP (1) JP4813365B2 (pt)
KR (1) KR101132485B1 (pt)
CN (1) CN1886781B (pt)
BR (1) BRPI0416577A (pt)
TW (1) TWI350476B (pt)
WO (1) WO2005055193A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9002716B2 (en) * 2002-12-02 2015-04-07 Thomson Licensing Method for describing the composition of audio signals
US8195470B2 (en) 2005-10-31 2012-06-05 Sk Telecom Co., Ltd. Audio data packet format and decoding method thereof and method for correcting mobile communication terminal codec setup error and mobile communication terminal performance same
RU2020112483A (ru) * 2017-10-20 2021-09-27 Сони Корпорейшн Устройство, способ и программа для обработки сигнала
US11257478B2 (en) 2017-10-20 2022-02-22 Sony Corporation Signal processing device, signal processing method, and program

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63289597A (ja) * 1988-03-11 1988-11-28 ソニー株式会社 残響付加装置
JP3033357B2 (ja) * 1992-09-08 2000-04-17 ヤマハ株式会社 効果付与装置
CN1139988A (zh) * 1994-02-01 1997-01-08 夸尔柯姆股份有限公司 猝发脉冲激励的线性预测
CN1179226A (zh) * 1995-03-22 1998-04-15 艾利森电话股份有限公司 基于合成的分析的线性预测语音编码器
US5751901A (en) * 1996-07-31 1998-05-12 Qualcomm Incorporated Method for searching an excitation codebook in a code excited linear prediction (CELP) coder
FI116990B (fi) * 1997-10-20 2006-04-28 Nokia Oyj Menetelmä ja järjestelmä akustisen virtuaaliympäristön käsittelemiseksi
US6833840B2 (en) * 2000-02-14 2004-12-21 Optibase Ltd PROTO implementation in MPEG-4
GB2366709A (en) 2000-06-30 2002-03-13 Graeme Roy Smith Modular software definable pre-amplifier
EP1209949A1 (en) 2000-11-22 2002-05-29 Technische Universiteit Delft Wave Field Synthesys Sound reproduction system using a Distributed Mode Panel
JP4263869B2 (ja) * 2002-03-11 2009-05-13 ヤマハ株式会社 残響付与装置、残響付与方法、プログラムおよび記録媒体
US20030169887A1 (en) 2002-03-11 2003-09-11 Yamaha Corporation Reverberation generating apparatus with bi-stage convolution of impulse response waveform
JP4019753B2 (ja) * 2002-03-12 2007-12-12 ヤマハ株式会社 残響付与装置、残響付与方法、プログラムおよび記録媒体
JP4055054B2 (ja) * 2002-05-15 2008-03-05 ソニー株式会社 音響処理装置
JP2005157278A (ja) * 2003-08-26 2005-06-16 Victor Co Of Japan Ltd 全周囲音場創生装置、全周囲音場創生方法、及び全周囲音場創生プログラム

Also Published As

Publication number Publication date
US20070140501A1 (en) 2007-06-21
WO2005055193A1 (en) 2005-06-16
EP1690251A1 (en) 2006-08-16
JP2007513370A (ja) 2007-05-24
CN1886781A (zh) 2006-12-27
KR20070037431A (ko) 2007-04-04
CN1886781B (zh) 2011-05-04
US7894610B2 (en) 2011-02-22
JP4813365B2 (ja) 2011-11-09
EP1690251B1 (en) 2015-08-26
TW200525416A (en) 2005-08-01
TWI350476B (en) 2011-10-11
KR101132485B1 (ko) 2012-03-30

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2260 DE 29/04/2014.