DE69624091D1 - Audiosignalwiedergabegerät - Google Patents

Audiosignalwiedergabegerät

Info

Publication number
DE69624091D1
DE69624091D1 DE69624091T DE69624091T DE69624091D1 DE 69624091 D1 DE69624091 D1 DE 69624091D1 DE 69624091 T DE69624091 T DE 69624091T DE 69624091 T DE69624091 T DE 69624091T DE 69624091 D1 DE69624091 D1 DE 69624091D1
Authority
DE
Germany
Prior art keywords
audio signal
reproduction device
signal reproduction
audio
signal
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 - Fee Related
Application number
DE69624091T
Other languages
English (en)
Other versions
DE69624091T2 (de
Inventor
Christopher Bird
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 DE69624091D1 publication Critical patent/DE69624091D1/de
Publication of DE69624091T2 publication Critical patent/DE69624091T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/01—Input selection or mixing for amplifiers or loudspeakers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Circuit For Audible Band Transducer (AREA)
DE69624091T 1995-06-30 1996-06-28 Audiosignalwiedergabegerät Expired - Fee Related DE69624091T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9513419.3A GB9513419D0 (en) 1995-06-30 1995-06-30 Audio signal reproduction apparatus
PCT/IB1996/000621 WO1997002719A1 (en) 1995-06-30 1996-06-28 Audio signal reproduction apparatus

Publications (2)

Publication Number Publication Date
DE69624091D1 true DE69624091D1 (de) 2002-11-07
DE69624091T2 DE69624091T2 (de) 2003-06-18

Family

ID=10776973

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69624091T Expired - Fee Related DE69624091T2 (de) 1995-06-30 1996-06-28 Audiosignalwiedergabegerät

Country Status (8)

Country Link
US (1) US5784476A (de)
EP (1) EP0793896B1 (de)
JP (1) JP3639598B2 (de)
KR (1) KR970705916A (de)
DE (1) DE69624091T2 (de)
GB (1) GB9513419D0 (de)
TW (1) TW310501B (de)
WO (1) WO1997002719A1 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5892834A (en) * 1997-06-30 1999-04-06 Ford Motor Company Audio level dynamic range compression
US6718217B1 (en) * 1997-12-02 2004-04-06 Jsr Corporation Digital audio tone evaluating system
JPH11317680A (ja) * 1998-05-01 1999-11-16 Sony Corp デジタル音声放送の受信機
GB9824776D0 (en) * 1998-11-11 1999-01-06 Kemp Michael J Audio dynamic control effects synthesiser
TW477109B (en) * 1999-10-07 2002-02-21 K S Waves Ltd Dynamic range compressor-limiter and low-level-expander with look-ahead for maximizing and stabilizing voice level in telecommunication applications
US6965676B1 (en) * 1999-10-19 2005-11-15 Texas Instruments Incorporated Volume-responsive loudness compensation circuits, systems, and methods
US7027981B2 (en) * 1999-11-29 2006-04-11 Bizjak Karl M System output control method and apparatus
US6651040B1 (en) * 2000-05-31 2003-11-18 International Business Machines Corporation Method for dynamic adjustment of audio input gain in a speech system
DE10050150A1 (de) * 2000-10-11 2002-04-18 Alcatel Sa Dynamikreduzierung für dynamikbegrenzte Audiosysteme
US6862352B1 (en) * 2000-10-11 2005-03-01 Intersil Corporation Controlled switching mechanism for accomplishing soft polarity reversal, ring-trip filtering, and line voltage measurements in a subscriber line interface circuit using common capacitor
US6882735B2 (en) * 2001-01-11 2005-04-19 Autodesk, Inc. Dynamic range compression of an audio signal
AU2003256724A1 (en) * 2002-07-26 2004-02-16 Motorola, Inc. Method for fast dynamic estimation of background noise
US20070168063A1 (en) * 2006-01-18 2007-07-19 Gallien Robert A Programmable tone control filters for electric guitar
US8521314B2 (en) * 2006-11-01 2013-08-27 Dolby Laboratories Licensing Corporation Hierarchical control path with constraints for audio dynamics processing
TWI382657B (zh) * 2007-03-01 2013-01-11 Princeton Technology Corp 音訊處理系統
CN101478296B (zh) * 2009-01-05 2011-12-21 华为终端有限公司 一种多声道系统中的增益控制方法及装置
EP2392072A4 (de) * 2009-02-02 2014-09-03 Hewlett Packard Development Co Verfahren zum auspegeln mehrerer audiosignale
JP2010244602A (ja) * 2009-04-03 2010-10-28 Sony Corp 信号処理装置及び方法、並びにプログラム
US9497540B2 (en) * 2009-12-23 2016-11-15 Conexant Systems, Inc. System and method for reducing rub and buzz distortion
US20120163621A1 (en) * 2010-12-23 2012-06-28 Riggs Brett D Original equipment manufacturer ("oem") integration amplifier
US9413322B2 (en) * 2012-11-19 2016-08-09 Harman International Industries, Incorporated Audio loudness control system
US9379688B2 (en) * 2013-04-12 2016-06-28 Garmin International, Inc. Aircraft radio with improved standby performance
DE102014218728A1 (de) * 2014-09-18 2016-03-24 Bayerische Motoren Werke Aktiengesellschaft Lautheitsanpassung von Audiosignalen in Fahrzeugen

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297527A (en) * 1979-05-01 1981-10-27 E-Systems, Inc. Input gain adjusting apparatus and method
US4306115A (en) * 1980-03-19 1981-12-15 Humphrey Francis S Automatic volume control system
US5034984A (en) * 1983-02-14 1991-07-23 Bose Corporation Speed-controlled amplifying
US4747065A (en) * 1985-10-11 1988-05-24 International Business Machines Corporation Automatic gain control in a digital signal processor
DE3837538C2 (de) * 1988-02-03 1996-10-17 Pioneer Electronic Corp Lautstärkesteuerschaltung mit Frequenzgangkompensation für ein Audiowiedergabegerät eines Kraftfahrzeugs
JPH0691394B2 (ja) * 1988-03-11 1994-11-14 パイオニア株式会社 出力レベル制御装置
US4944018A (en) * 1988-04-04 1990-07-24 Bose Corporation Speed controlled amplifying
US5077799A (en) * 1989-01-13 1991-12-31 Brian Cotton Automatic volume control circuit
US5016205A (en) * 1989-04-27 1991-05-14 Motorola, Inc. Digital signal processor based AGC
JPH0575366A (ja) * 1991-09-10 1993-03-26 Pioneer Electron Corp オーデイオ装置における信号処理回路
JP3295440B2 (ja) * 1991-09-10 2002-06-24 パイオニア株式会社 オーディオ装置における信号処理回路
JP3295443B2 (ja) * 1991-10-09 2002-06-24 パイオニア株式会社 オーディオ装置における信号処理回路
DE4141843B4 (de) * 1991-12-18 2006-06-08 Harman Becker Automotive Systems (Becker Division) Gmbh Verfahren zur Steuerung der Signalwiedergabe von gemischten Musik- und Sprachsignalen, Schaltungsanordnungen zum Durchführen des Verfahrens sowie Anwendungen des Verfahrens bzw. der Schaltungsanordnung
FI95754C (fi) * 1992-10-21 1996-03-11 Nokia Deutschland Gmbh Äänentoistojärjestelmä
EP0616425B1 (de) * 1993-03-19 1998-11-25 Koninklijke Philips Electronics N.V. Tonfrequenzverstärkeranordnung
DE4336608C2 (de) * 1993-10-27 1997-02-06 Klippel Wolfgang Schaltungsanordnung zum Schutz elektrodynamischer Lautsprecher gegen mechanische Überlastung durch hohe Schwingspulenauslenkung
US5533136A (en) * 1993-11-04 1996-07-02 Smith; Terry L. Circuit for attenuating commercial interruptions during radio broadcasting
US5467393A (en) * 1993-11-24 1995-11-14 Ericsson Inc. Method and apparatus for volume and intelligibility control for a loudspeaker
US5422602A (en) * 1994-06-20 1995-06-06 Aphex Systems, Ltd. Frequency discriminate leveler
US5640460A (en) * 1995-04-03 1997-06-17 Motorola Inc. Amplitude adjust circuit and method thereof
US5666426A (en) * 1996-10-17 1997-09-09 Advanced Micro Devices, Inc. Automatic volume control to compensate for ambient noise variations

Also Published As

Publication number Publication date
DE69624091T2 (de) 2003-06-18
JPH10505734A (ja) 1998-06-02
WO1997002719A1 (en) 1997-01-23
EP0793896A1 (de) 1997-09-10
GB9513419D0 (en) 1995-09-06
US5784476A (en) 1998-07-21
KR970705916A (ko) 1997-10-09
TW310501B (de) 1997-07-11
JP3639598B2 (ja) 2005-04-20
EP0793896B1 (de) 2002-10-02

Similar Documents

Publication Publication Date Title
DE69624091D1 (de) Audiosignalwiedergabegerät
DE69120978D1 (de) Schallsignalwiedergabegerät
DE69434887D1 (de) Audiowiedergabeeinrichtung
DE59814415D1 (de) Schallwiedergabeanordnung
DE69632889D1 (de) Kopfhörer-Wiedergabegerät
DE69635973D1 (de) Audio-Teilbandkodierverfahren
DE69629170D1 (de) Tonaufzeichnungsfilm
KR970011665U (ko) 서브우퍼신호 합성기능을 가지는 서라운드 음향신호 재생장치
DE69627050T2 (de) Fernsehsignalaufnahmeanlage
GB9525238D0 (en) Sound reproduction device
DE29614992U1 (de) Tonwiedergabevorrichtung
DE69625563D1 (de) Wiedergabevorrichtung
KR970007062U (ko) 연주음 분리재생장치
DE69631020D1 (de) Digitales Aufzeichnungs-/Wiedergabegerät
KR960038481U (ko) 브이씨알의 오디오신호 기록장치
DE69616290D1 (de) Audioverstärker
DE29509780U1 (de) Tonwiedergabevorrichtung
KR970025402U (ko) 오디오 신호 뮤트장치
KR970019476U (ko) 오디오 재생계 주파수 특성 보상장치
KR970002950U (ko) 특정 오디오 신호를 이용한 테이프 재생 방지 장치
KR960035828U (ko) 오디오/비디오 신호매칭장치
KR950004672U (ko) 오디오 신호 기록/재생장치
KR970003010U (ko) 영상신호재생장치
KR970007003U (ko) 영상신호 재생장치
KR970026194U (ko) 오디오 뮤트 회로

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee