ES2096302T3 - Transmision y memorizacion de señales audio multicanal cuando se utiliza un proceso de codificacion con reduccion del regimen de bits. - Google Patents

Transmision y memorizacion de señales audio multicanal cuando se utiliza un proceso de codificacion con reduccion del regimen de bits.

Info

Publication number
ES2096302T3
ES2096302T3 ES93914687T ES93914687T ES2096302T3 ES 2096302 T3 ES2096302 T3 ES 2096302T3 ES 93914687 T ES93914687 T ES 93914687T ES 93914687 T ES93914687 T ES 93914687T ES 2096302 T3 ES2096302 T3 ES 2096302T3
Authority
ES
Spain
Prior art keywords
audio
pct
channels
audio channels
audio signals
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
ES93914687T
Other languages
English (en)
Inventor
Robert Sedlmeyer
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.)
Institut fuer Rundfunktechnik GmbH
Original Assignee
Institut fuer Rundfunktechnik GmbH
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 Institut fuer Rundfunktechnik GmbH filed Critical Institut fuer Rundfunktechnik GmbH
Application granted granted Critical
Publication of ES2096302T3 publication Critical patent/ES2096302T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

PARA QUE SE REQUIERA SOLAMENTE UN INCREMENTO RELATIVAMENTE PEQUEÑO EN LA CUOTA DE DATOS ENTRE EL NUMERO DE CANALES DE UN SISTEMA DIGITALIZADO DE CANALES MULTIPLES Y CON UNA SEÑAL AUDIO REDUCIDA DE CUOTA DE BIT, SE APROVECHA EL ENCUBRIMIENTO PSICOAUSTICO MEDIANTE AL MENOS PARTE DE LOS CANALES AUDIO QUE PERMANECEN O MEDIANTE LA REDUNDANCIA DE CANALES AUDIO INDIVIDUALES DE CADA CANAL AUDIO INDIVIDUAL CUANDO SE REDUCE LA CUOTA DE BIT DE LAS SEÑALES DE AUDIO DISPONIENDO DE MAS DE DOS CANALES DE AUDIO. SOLAMENTE AQUELLAS PARTES QUE CONCIERNEN AL CANAL AUDIO SON TRANSMITIDAS O ACUMULADAS PERO NO ESTAN OCULTAS POR MEDIO DE LAS SEÑALES DE AUDIO O DE OTROS CANALES AUDIO QUE SON CONTENIDAS EN LOS CANALES AUDIO PARA REPRODUCCION ESTEREOFONICA CON TODOS LOS TIPOS DE REPRODUCCION DISPONIBLE POR SELECCION. ADICIONALMENTE, LAS PARTES UTILIZADAS SON TRANSMITIDAS O ACUMULADAS CON UNA RESOLUCION SOLAMENTE GRANDE DE FORMA SUFICIENTE PARA LA TOTALIDAD DE LOS CANALES DE AUDIO QUE PERMANECEN OCULTOS EN LA CUANTIZACION DEL SONIDO GENERADO DURANTE LA CUANTIZACION EN TODOS LOS TIPOS DE REPRODUCCION DISPONIBLES POR SELECCION.
ES93914687T 1992-07-10 1993-06-22 Transmision y memorizacion de señales audio multicanal cuando se utiliza un proceso de codificacion con reduccion del regimen de bits. Expired - Lifetime ES2096302T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4222623A DE4222623C2 (de) 1992-07-10 1992-07-10 Verfahren zum Übertragen oder Speichern von digitalisierten Tonsignalen

Publications (1)

Publication Number Publication Date
ES2096302T3 true ES2096302T3 (es) 1997-03-01

Family

ID=6462873

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93914687T Expired - Lifetime ES2096302T3 (es) 1992-07-10 1993-06-22 Transmision y memorizacion de señales audio multicanal cuando se utiliza un proceso de codificacion con reduccion del regimen de bits.

Country Status (7)

Country Link
US (1) US5638451A (es)
EP (1) EP0649588B1 (es)
AT (1) ATE147224T1 (es)
DE (2) DE4222623C2 (es)
DK (1) DK0649588T3 (es)
ES (1) ES2096302T3 (es)
WO (1) WO1994001980A1 (es)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960012475B1 (ko) * 1994-01-18 1996-09-20 대우전자 주식회사 디지탈 오디오 부호화장치의 채널별 비트 할당 장치
KR0134318B1 (ko) * 1994-01-28 1998-04-29 김광호 채널간의 마스킹특성을 고려한 비트할당장치 및 그 방법과 복호화장치
JP3443938B2 (ja) * 1994-03-31 2003-09-08 ソニー株式会社 ディジタル信号処理装置
JP3277679B2 (ja) * 1994-04-15 2002-04-22 ソニー株式会社 高能率符号化方法と高能率符号化装置及び高能率復号化方法と高能率復号化装置
GB9500285D0 (en) * 1995-01-07 1995-03-01 Central Research Lab Ltd A method of labelling an audio signal
US5799094A (en) * 1995-01-26 1998-08-25 Victor Company Of Japan, Ltd. Surround signal processing apparatus and video and audio signal reproducing apparatus
WO1997038493A1 (en) * 1996-04-10 1997-10-16 Philips Electronics N.V. Encoding of a plurality of information signals
CN1204692C (zh) * 1996-04-10 2005-06-01 皇家菲利浦电子有限公司 编码若干信息信号的编码装置
US6757913B2 (en) 1996-07-15 2004-06-29 Gregory D. Knox Wireless music and data transceiver system
US6252965B1 (en) * 1996-09-19 2001-06-26 Terry D. Beard Multichannel spectral mapping audio apparatus and method
US6215737B1 (en) 1997-05-05 2001-04-10 Wea Manufacturing, Inc. Using different sampling rates to record multi-channel digital audio on a recording medium and playing back such digital audio
SG75840A1 (en) * 1997-05-05 2000-10-24 Wea Mfg Inc Recording and playback of multi-channel digital audio having different sampling rates for different channels
SG71113A1 (en) * 1997-05-05 2000-04-18 Wea Mfg Inc Synchronizing audio signal samples taken at different sampling raters
AU749739B2 (en) * 1997-05-05 2002-07-04 Warner Music Group, Inc. Recording and playback of multi-channel digital audio having different resolutions for different channels
US6298025B1 (en) * 1997-05-05 2001-10-02 Warner Music Group Inc. Recording and playback of multi-channel digital audio having different resolutions for different channels
US6122380A (en) * 1997-12-01 2000-09-19 Sony Corporation Apparatus and method of providing stereo television audio signals
KR100371746B1 (ko) * 1999-08-18 2003-02-11 한국전자통신연구원 멀티미디어용 다채널 오디오 다중화 장치 및 방법
EP1223696A3 (en) * 2001-01-12 2003-12-17 Matsushita Electric Industrial Co., Ltd. System for transmitting digital audio data according to the MOST method
US7454257B2 (en) * 2001-02-08 2008-11-18 Warner Music Group Apparatus and method for down converting multichannel programs to dual channel programs using a smart coefficient generator
GB0110132D0 (en) * 2001-04-25 2001-06-20 Central Research Lab Ltd System to detect compression of audio signals
US6934676B2 (en) * 2001-05-11 2005-08-23 Nokia Mobile Phones Ltd. Method and system for inter-channel signal redundancy removal in perceptual audio coding
US20070160236A1 (en) * 2004-07-06 2007-07-12 Kazuhiro Iida Audio signal encoding device, audio signal decoding device, and method and program thereof
US20060106646A1 (en) * 2004-11-18 2006-05-18 Eastman Kodak Company Medical kiosk with multiple input sources
US8170218B2 (en) * 2007-10-04 2012-05-01 Hurtado-Huyssen Antoine-Victor Multi-channel audio treatment system and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3639753A1 (de) * 1986-11-21 1988-06-01 Inst Rundfunktechnik Gmbh Verfahren zum uebertragen digitalisierter tonsignale
NL9000338A (nl) * 1989-06-02 1991-01-02 Koninkl Philips Electronics Nv Digitaal transmissiesysteem, zender en ontvanger te gebruiken in het transmissiesysteem en registratiedrager verkregen met de zender in de vorm van een optekeninrichting.
US5285498A (en) * 1992-03-02 1994-02-08 At&T Bell Laboratories Method and apparatus for coding audio signals based on perceptual model

Also Published As

Publication number Publication date
DE59304999D1 (de) 1997-02-13
WO1994001980A1 (de) 1994-01-20
ATE147224T1 (de) 1997-01-15
EP0649588A1 (de) 1995-04-26
EP0649588B1 (de) 1997-01-02
DE4222623C2 (de) 1996-07-11
DK0649588T3 (da) 1997-05-12
US5638451A (en) 1997-06-10
DE4222623A1 (de) 1994-01-13

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