BE869004A - Systeme de dereverberation - Google Patents

Systeme de dereverberation

Info

Publication number
BE869004A
BE869004A BE189290A BE189290A BE869004A BE 869004 A BE869004 A BE 869004A BE 189290 A BE189290 A BE 189290A BE 189290 A BE189290 A BE 189290A BE 869004 A BE869004 A BE 869004A
Authority
BE
Belgium
Prior art keywords
dereverberation system
dereverberation
Prior art date
Application number
BE189290A
Other languages
English (en)
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 BE869004A publication Critical patent/BE869004A/fr

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
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
    • H04R29/005—Microphone arrays
    • H04R29/006—Microphone matching
    • 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
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/403—Linear arrays of transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
BE189290A 1977-07-18 1978-07-14 Systeme de dereverberation BE869004A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/816,525 US4087633A (en) 1977-07-18 1977-07-18 Dereverberation system

Publications (1)

Publication Number Publication Date
BE869004A true BE869004A (fr) 1978-11-03

Family

ID=25220877

Family Applications (1)

Application Number Title Priority Date Filing Date
BE189290A BE869004A (fr) 1977-07-18 1978-07-14 Systeme de dereverberation

Country Status (7)

Country Link
US (1) US4087633A (fr)
JP (1) JPS5421801A (fr)
BE (1) BE869004A (fr)
FR (1) FR2398426A1 (fr)
IT (1) IT1097956B (fr)
NL (1) NL7807476A (fr)
WO (1) WO1979000046A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485484A (en) * 1982-10-28 1984-11-27 At&T Bell Laboratories Directable microphone system
US5293578A (en) * 1989-07-19 1994-03-08 Fujitso Ten Limited Noise reducing device
JP3046203B2 (ja) * 1994-05-18 2000-05-29 三菱電機株式会社 ハンズフリー通話装置
US5774562A (en) * 1996-03-25 1998-06-30 Nippon Telegraph And Telephone Corp. Method and apparatus for dereverberation
US7319770B2 (en) * 2004-04-30 2008-01-15 Phonak Ag Method of processing an acoustic signal, and a hearing instrument
US7844059B2 (en) * 2005-03-16 2010-11-30 Microsoft Corporation Dereverberation of multi-channel audio streams
EP1993320B1 (fr) * 2006-03-03 2015-01-07 Nippon Telegraph And Telephone Corporation Dispositif, procede et programme d'elimination de la reverberation et support d'enregistrement
JP5620689B2 (ja) * 2009-02-13 2014-11-05 本田技研工業株式会社 残響抑圧装置及び残響抑圧方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662108A (en) * 1970-06-08 1972-05-09 Bell Telephone Labor Inc Apparatus for reducing multipath distortion of signals utilizing cepstrum technique
US3794766A (en) * 1973-02-08 1974-02-26 Bell Telephone Labor Inc Delay equalizing circuit for an audio system using multiple microphones
NL7413938A (nl) * 1974-10-24 1976-04-27 Saad Zaghloul Mohamed Gabr Inrichting en werkwijze voor het opheffen van akoestische terugkoppeling.
DE2541032A1 (de) * 1975-09-15 1977-03-17 Sigismund Dr Ing Entleutner Elektrische schaltung zur elimination oder verzerrung von akustischen stoersignalen, die phasenverschoben von zwei oder mehreren mikrofonen aufgenommen werden
US4066842A (en) * 1977-04-27 1978-01-03 Bell Telephone Laboratories, Incorporated Method and apparatus for cancelling room reverberation and noise pickup
US4069395A (en) * 1977-04-27 1978-01-17 Bell Telephone Laboratories, Incorporated Analog dereverberation system

Also Published As

Publication number Publication date
WO1979000046A1 (fr) 1979-02-08
US4087633A (en) 1978-05-02
IT1097956B (it) 1985-08-31
NL7807476A (nl) 1979-01-22
JPS5421801A (en) 1979-02-19
IT7825723A0 (it) 1978-07-14
FR2398426A1 (fr) 1979-02-16

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