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SE431280B - Signalbehandlingsanordning for att alstra en brusreducerad utgangssignal av tva tillforda signaler - Google Patents

Signalbehandlingsanordning for att alstra en brusreducerad utgangssignal av tva tillforda signaler

Info

Publication number
SE431280B
SE431280B SE7804451A SE7804451A SE431280B SE 431280 B SE431280 B SE 431280B SE 7804451 A SE7804451 A SE 7804451A SE 7804451 A SE7804451 A SE 7804451A SE 431280 B SE431280 B SE 431280B
Authority
SE
Sweden
Prior art keywords
signal
signals
output signal
amplitude
output
Prior art date
Application number
SE7804451A
Other languages
English (en)
Swedish (sv)
Other versions
SE7804451L (sv
Inventor
J B Allen
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of SE7804451L publication Critical patent/SE7804451L/xx
Publication of SE431280B publication Critical patent/SE431280B/sv

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/105—Appliances, e.g. washing machines or dishwashers
    • G10K2210/1053—Hi-fi, i.e. anything involving music, radios or loudspeakers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3018—Correlators, e.g. convolvers or coherence calculators
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/50—Miscellaneous
    • G10K2210/505—Echo cancellation, e.g. multipath-, ghost- or reverberation-cancellation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Complex Calculations (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Noise Elimination (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
SE7804451A 1977-04-27 1978-04-19 Signalbehandlingsanordning for att alstra en brusreducerad utgangssignal av tva tillforda signaler SE431280B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/791,418 US4066842A (en) 1977-04-27 1977-04-27 Method and apparatus for cancelling room reverberation and noise pickup

Publications (2)

Publication Number Publication Date
SE7804451L SE7804451L (sv) 1978-10-28
SE431280B true SE431280B (sv) 1984-01-23

Family

ID=25153657

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7804451A SE431280B (sv) 1977-04-27 1978-04-19 Signalbehandlingsanordning for att alstra en brusreducerad utgangssignal av tva tillforda signaler

Country Status (14)

Country Link
US (1) US4066842A (fr)
JP (1) JPS5919357B2 (fr)
AU (1) AU519308B2 (fr)
BE (1) BE866295A (fr)
CA (1) CA1110768A (fr)
CH (1) CH629350A5 (fr)
DE (1) DE2818204C2 (fr)
ES (1) ES469121A1 (fr)
FR (1) FR2389280A1 (fr)
GB (1) GB1595260A (fr)
IL (1) IL54572A (fr)
IT (1) IT1203179B (fr)
NL (1) NL184449C (fr)
SE (1) SE431280B (fr)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209672A (en) * 1977-07-15 1980-06-24 Tokyo Shibaura Denki Kabushiki Kaisha Method and apparatus for measuring characteristics of a loudspeaker
US4087633A (en) * 1977-07-18 1978-05-02 Bell Telephone Laboratories, Incorporated Dereverberation system
CA1123955A (fr) * 1978-03-30 1982-05-18 Tetsu Taguchi Appareil d'analyse et de synthese de la parole
JPS5715597A (en) * 1980-07-02 1982-01-26 Nippon Gakki Seizo Kk Microphone device
JPS5717027A (en) * 1980-07-03 1982-01-28 Hitachi Ltd Vibration reducing device of electric machinery
JPS5852780Y2 (ja) * 1980-07-19 1983-12-01 パイオニア株式会社 マイクロホン
JPS5763937A (en) * 1980-10-06 1982-04-17 Nippon Telegr & Teleph Corp <Ntt> Noise suppression system
US4381428A (en) * 1981-05-11 1983-04-26 The United States Of America As Represented By The Secretary Of The Navy Adaptive quantizer for acoustic binary information transmission
US4490841A (en) * 1981-10-21 1984-12-25 Sound Attenuators Limited Method and apparatus for cancelling vibrations
DE3374514D1 (en) * 1982-01-27 1987-12-17 Racal Acoustics Ltd Improvements in and relating to communications systems
JPS58160996A (ja) * 1982-03-19 1983-09-24 日本電信電話株式会社 雑音抑圧方式
JPS58181099A (ja) * 1982-04-16 1983-10-22 三菱電機株式会社 音声識別装置
US4485484A (en) * 1982-10-28 1984-11-27 At&T Bell Laboratories Directable microphone system
US4741038A (en) * 1986-09-26 1988-04-26 American Telephone And Telegraph Company, At&T Bell Laboratories Sound location arrangement
JP2646210B2 (ja) * 1987-05-27 1997-08-27 ヤマハ株式会社 電気音響的残響支援装置
FR2674346A1 (fr) * 1991-03-19 1992-09-25 Thomson Csf Procede de soustraction de bruit pour vehicule sous-marin.
US5400409A (en) * 1992-12-23 1995-03-21 Daimler-Benz Ag Noise-reduction method for noise-affected voice channels
DE4307688A1 (de) * 1993-03-11 1994-09-15 Daimler Benz Ag Verfahren zur Geräuschreduktion für gestörte Sprachkanäle
US5633935A (en) * 1993-04-13 1997-05-27 Matsushita Electric Industrial Co., Ltd. Stereo ultradirectional microphone apparatus
US5774562A (en) * 1996-03-25 1998-06-30 Nippon Telegraph And Telephone Corp. Method and apparatus for dereverberation
WO2001053982A1 (fr) * 2000-01-18 2001-07-26 National Research Council Of Canada Architecture de correlateur parallele
EP1519618B1 (fr) * 2003-09-24 2011-11-02 Hewlett-Packard Development Company, L.P. Procédure et appareil de communication avec des moyens pour supprimer les interférences des signaux audio
US8275147B2 (en) * 2004-05-05 2012-09-25 Deka Products Limited Partnership Selective shaping of communication signals
US7508948B2 (en) * 2004-10-05 2009-03-24 Audience, Inc. Reverberation removal
US8180067B2 (en) * 2006-04-28 2012-05-15 Harman International Industries, Incorporated System for selectively extracting components of an audio input signal
US8036767B2 (en) * 2006-09-20 2011-10-11 Harman International Industries, Incorporated System for extracting and changing the reverberant content of an audio input signal
US8767975B2 (en) * 2007-06-21 2014-07-01 Bose Corporation Sound discrimination method and apparatus
US8611554B2 (en) * 2008-04-22 2013-12-17 Bose Corporation Hearing assistance apparatus
CN102687536B (zh) * 2009-10-05 2017-03-08 哈曼国际工业有限公司 用于音频信号的空间提取的系统
US8761410B1 (en) * 2010-08-12 2014-06-24 Audience, Inc. Systems and methods for multi-channel dereverberation
US9078077B2 (en) 2010-10-21 2015-07-07 Bose Corporation Estimation of synthetic audio prototypes with frequency-based input signal decomposition
US9635474B2 (en) 2011-05-23 2017-04-25 Sonova Ag Method of processing a signal in a hearing instrument, and hearing instrument
US9307321B1 (en) 2011-06-09 2016-04-05 Audience, Inc. Speaker distortion reduction
US9877134B2 (en) * 2015-07-28 2018-01-23 Harman International Industries, Incorporated Techniques for optimizing the fidelity of a remote recording
CN105448302B (zh) * 2015-11-10 2019-06-25 厦门快商通科技股份有限公司 一种环境自适应的语音混响消除方法和系统
CN106686477A (zh) * 2017-03-10 2017-05-17 安徽声讯信息技术有限公司 一种适用远距离的记录转写的无源麦克风
CN107068162B (zh) * 2017-05-25 2021-03-05 北京小鱼在家科技有限公司 一种语音增强方法、装置及终端设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3440350A (en) * 1966-08-01 1969-04-22 Bell Telephone Labor Inc Reception of signals transmitted in a reverberant environment
US3644674A (en) * 1969-06-30 1972-02-22 Bell Telephone Labor Inc Ambient noise suppressor
US3662108A (en) * 1970-06-08 1972-05-09 Bell Telephone Labor Inc Apparatus for reducing multipath distortion of signals utilizing cepstrum technique
US3786188A (en) * 1972-12-07 1974-01-15 Bell Telephone Labor Inc Synthesis of pure speech from a reverberant signal
US3794766A (en) * 1973-02-08 1974-02-26 Bell Telephone Labor Inc Delay equalizing circuit for an audio system using multiple microphones

Also Published As

Publication number Publication date
GB1595260A (en) 1981-08-12
US4066842A (en) 1978-01-03
FR2389280A1 (fr) 1978-11-24
NL7804497A (nl) 1978-10-31
JPS5919357B2 (ja) 1984-05-04
CA1110768A (fr) 1981-10-13
ES469121A1 (es) 1979-09-16
FR2389280B1 (fr) 1983-08-19
DE2818204A1 (de) 1978-11-02
AU3534378A (en) 1979-10-25
AU519308B2 (en) 1981-11-26
DE2818204C2 (de) 1984-04-19
IL54572A0 (en) 1978-07-31
NL184449B (nl) 1989-02-16
NL184449C (nl) 1989-07-17
CH629350A5 (de) 1982-04-15
JPS53135204A (en) 1978-11-25
SE7804451L (sv) 1978-10-28
BE866295A (fr) 1978-08-14
IT7867945A0 (it) 1978-04-26
IL54572A (en) 1980-07-31
IT1203179B (it) 1989-02-15

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