DE69619124T2 - Durch digitale signalverarbeitung implementiertes audiorauschunterdrückungssystem - Google Patents

Durch digitale signalverarbeitung implementiertes audiorauschunterdrückungssystem

Info

Publication number
DE69619124T2
DE69619124T2 DE69619124T DE69619124T DE69619124T2 DE 69619124 T2 DE69619124 T2 DE 69619124T2 DE 69619124 T DE69619124 T DE 69619124T DE 69619124 T DE69619124 T DE 69619124T DE 69619124 T2 DE69619124 T2 DE 69619124T2
Authority
DE
Germany
Prior art keywords
signal processing
digital signal
interpretation system
processing implemented
implemented audio
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
DE69619124T
Other languages
English (en)
Other versions
DE69619124D1 (de
Inventor
Laura Mercs
M Embree
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.)
Sony Pictures Entertainment Inc
Original Assignee
Sony Pictures Entertainment Inc
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 Sony Pictures Entertainment Inc filed Critical Sony Pictures Entertainment Inc
Application granted granted Critical
Publication of DE69619124D1 publication Critical patent/DE69619124D1/de
Publication of DE69619124T2 publication Critical patent/DE69619124T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/005—Combinations of two or more types of control, e.g. gain control and tone control of digital or coded signals
    • 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
    • G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band 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
    • H04B1/62—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 providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Analogue/Digital Conversion (AREA)
DE69619124T 1995-11-22 1996-11-22 Durch digitale signalverarbeitung implementiertes audiorauschunterdrückungssystem Expired - Fee Related DE69619124T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/562,287 US5907623A (en) 1995-11-22 1995-11-22 Audio noise reduction system implemented through digital signal processing
PCT/US1996/018755 WO1997019448A1 (en) 1995-11-22 1996-11-22 Audio noise reduction system implemented through digital signal processing

Publications (2)

Publication Number Publication Date
DE69619124D1 DE69619124D1 (de) 2002-03-21
DE69619124T2 true DE69619124T2 (de) 2002-09-05

Family

ID=24245633

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69619124T Expired - Fee Related DE69619124T2 (de) 1995-11-22 1996-11-22 Durch digitale signalverarbeitung implementiertes audiorauschunterdrückungssystem

Country Status (7)

Country Link
US (2) US5907623A (de)
EP (1) EP0862778B1 (de)
JP (1) JP2000500900A (de)
AU (1) AU1023397A (de)
CA (1) CA2238069C (de)
DE (1) DE69619124T2 (de)
WO (1) WO1997019448A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19624362A1 (de) * 1996-06-19 1998-01-02 Philips Patentverwaltung Schaltungsanordnung zur Frequenzgangbeeinflussung eines digitalen Audiosignals
DE69939373D1 (de) 1999-06-23 2008-10-02 Eta Sa Mft Horlogere Suisse Uhr mit einem zusätzlichem elektrischen Gerät
US6928170B1 (en) 2000-11-02 2005-08-09 Audio Technica, Inc. Wireless microphone having a split-band audio frequency companding system that provides improved noise reduction and sound quality
DE60219836T2 (de) * 2002-12-09 2007-12-27 Tc Electronic A/S Vollparametrischer equalizer
US7369658B2 (en) 2003-04-07 2008-05-06 Optichron, Inc. Secure modulation and demodulation
JP4226395B2 (ja) * 2003-06-16 2009-02-18 アルパイン株式会社 音声補正装置
US7171010B2 (en) * 2003-09-11 2007-01-30 Boston Acoustics, Inc. Dynamic bass boost apparatus and method
US20190220498A1 (en) * 2018-01-15 2019-07-18 Der-Feng Huang Digital signal processing system and design method thereof

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4208548A (en) * 1977-07-19 1980-06-17 Orban Associates, Inc. Apparatus and method for peak-limiting audio frequency signals
JPS60101769A (ja) * 1983-11-09 1985-06-05 Hitachi Ltd 信号伝送装置
US4802222A (en) * 1983-12-12 1989-01-31 Sri International Data compression system and method for audio signals
US4701722A (en) * 1985-06-17 1987-10-20 Dolby Ray Milton Circuit arrangements for modifying dynamic range using series and parallel circuit techniques
US4736433A (en) * 1985-06-17 1988-04-05 Dolby Ray Milton Circuit arrangements for modifying dynamic range using action substitution and superposition techniques
DE3630692A1 (de) * 1985-09-10 1987-04-30 Canon Kk Tonsignaluebertragungssystem
US4829299A (en) * 1987-09-25 1989-05-09 Dolby Laboratories Licensing Corporation Adaptive-filter single-bit digital encoder and decoder and adaptation control circuit responsive to bit-stream loading
ES2038518T3 (es) 1989-04-03 1993-07-16 Dolby Laboratories Licensing Corporation Compresor y expansor de audio, y circuitos de reduccion de ruido para utilizacion por usuarios y semi-profesionales.
US5150370A (en) * 1989-06-14 1992-09-22 Matsushita Electric Industrial Co., Ltd. Narrow-band laser apparatus
US5168526A (en) * 1990-10-29 1992-12-01 Akg Acoustics, Inc. Distortion-cancellation circuit for audio peak limiting
DE4109211A1 (de) * 1991-03-21 1992-09-24 Philips Patentverwaltung Schaltungsanordnung zur frequenzgangbeeinflussung eines digitalen audiosignals
JPH0537298A (ja) * 1991-07-29 1993-02-12 Rohm Co Ltd デイジタルフイルタ
CA2075156A1 (en) * 1991-08-02 1993-02-03 Kenzo Akagiri Digital encoder with dynamic quantization bit allocation
US5150379A (en) 1991-09-27 1992-09-22 Hewlett-Packard Company Signal processing system for adaptive equalization
JP2924496B2 (ja) * 1992-09-30 1999-07-26 松下電器産業株式会社 騒音制御装置
US5291557A (en) * 1992-10-13 1994-03-01 Dolby Laboratories Licensing Corporation Adaptive rematrixing of matrixed audio signals
FI97758C (fi) * 1992-11-20 1997-02-10 Nokia Deutschland Gmbh Järjestelmä audiosignaalin käsittelemiseksi
US5406622A (en) * 1993-09-02 1995-04-11 At&T Corp. Outbound noise cancellation for telephonic handset
US5483600A (en) * 1994-02-14 1996-01-09 Aphex Systems, Ltd. Wave dependent compressor
US5848163A (en) * 1996-02-02 1998-12-08 International Business Machines Corporation Method and apparatus for suppressing background music or noise from the speech input of a speech recognizer

Also Published As

Publication number Publication date
EP0862778A1 (de) 1998-09-09
CA2238069C (en) 2004-01-27
AU1023397A (en) 1997-06-11
EP0862778B1 (de) 2002-02-06
CA2238069A1 (en) 1997-05-29
DE69619124D1 (de) 2002-03-21
WO1997019448A1 (en) 1997-05-29
US5907623A (en) 1999-05-25
US6807278B1 (en) 2004-10-19
JP2000500900A (ja) 2000-01-25

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Legal Events

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