FR2305909A1 - Appareil microphonique pour la transmission de la parole dans une ambiance bruyante - Google Patents

Appareil microphonique pour la transmission de la parole dans une ambiance bruyante

Info

Publication number
FR2305909A1
FR2305909A1 FR7509992A FR7509992A FR2305909A1 FR 2305909 A1 FR2305909 A1 FR 2305909A1 FR 7509992 A FR7509992 A FR 7509992A FR 7509992 A FR7509992 A FR 7509992A FR 2305909 A1 FR2305909 A1 FR 2305909A1
Authority
FR
France
Prior art keywords
microphones
microphone
associated equipment
unshielded
masked
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.)
Granted
Application number
FR7509992A
Other languages
English (en)
Other versions
FR2305909B1 (fr
Inventor
Pierre Bouvier
Claude Colin
Leon Masliah
Jean Francois Morand
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.)
Thales SA
Original Assignee
Dassault Electronique SA
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 Dassault Electronique SA filed Critical Dassault Electronique SA
Priority to FR7509992A priority Critical patent/FR2305909A1/fr
Publication of FR2305909A1 publication Critical patent/FR2305909A1/fr
Application granted granted Critical
Publication of FR2305909B1 publication Critical patent/FR2305909B1/fr
Granted 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
    • H04R27/00—Public address systems
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR7509992A 1975-03-28 1975-03-28 Appareil microphonique pour la transmission de la parole dans une ambiance bruyante Granted FR2305909A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7509992A FR2305909A1 (fr) 1975-03-28 1975-03-28 Appareil microphonique pour la transmission de la parole dans une ambiance bruyante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7509992A FR2305909A1 (fr) 1975-03-28 1975-03-28 Appareil microphonique pour la transmission de la parole dans une ambiance bruyante

Publications (2)

Publication Number Publication Date
FR2305909A1 true FR2305909A1 (fr) 1976-10-22
FR2305909B1 FR2305909B1 (fr) 1980-11-14

Family

ID=9153320

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7509992A Granted FR2305909A1 (fr) 1975-03-28 1975-03-28 Appareil microphonique pour la transmission de la parole dans une ambiance bruyante

Country Status (1)

Country Link
FR (1) FR2305909A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534104A1 (fr) * 1982-09-30 1984-04-06 Shure Bros Systeme de sonorisation et systeme de microphones
WO1985001411A1 (fr) * 1983-09-14 1985-03-28 Keller, René Installation de transmission telephonique
WO1986000133A1 (fr) * 1984-06-08 1986-01-03 Plessey Australia Pty. Limited Systeme adaptatif de detection de la parole
EP0386765A2 (fr) * 1989-03-10 1990-09-12 Nippon Telegraph And Telephone Corporation Procédé pour la détection d'un signal acoustique
EP0595457A1 (fr) * 1992-10-29 1994-05-04 Andrea Electronics Corporation Dispositif d'annulation de bruit
EP0624046A1 (fr) * 1993-05-06 1994-11-09 Adam Opel Ag Appareil de communication mains libres avec compensation de bruit dans des véhicules automobiles
US5673325A (en) * 1992-10-29 1997-09-30 Andrea Electronics Corporation Noise cancellation apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5732143A (en) 1992-10-29 1998-03-24 Andrea Electronics Corp. Noise cancellation apparatus
US6363345B1 (en) 1999-02-18 2002-03-26 Andrea Electronics Corporation System, method and apparatus for cancelling noise
US6594367B1 (en) 1999-10-25 2003-07-15 Andrea Electronics Corporation Super directional beamforming design and implementation

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534104A1 (fr) * 1982-09-30 1984-04-06 Shure Bros Systeme de sonorisation et systeme de microphones
WO1985001411A1 (fr) * 1983-09-14 1985-03-28 Keller, René Installation de transmission telephonique
WO1986000133A1 (fr) * 1984-06-08 1986-01-03 Plessey Australia Pty. Limited Systeme adaptatif de detection de la parole
EP0186671A1 (fr) * 1984-06-08 1986-07-09 Plessey Australia Pty. Limited Systeme adaptatif de detection de la parole
EP0186671A4 (fr) * 1984-06-08 1988-11-16 Plessey Australia Systeme adaptatif de detection de la parole.
AU584904B2 (en) * 1984-06-08 1989-06-08 Plessey Australia Pty. Limited Adaptive speech detector system
EP0386765A2 (fr) * 1989-03-10 1990-09-12 Nippon Telegraph And Telephone Corporation Procédé pour la détection d'un signal acoustique
EP0386765A3 (fr) * 1989-03-10 1991-03-20 Nippon Telegraph And Telephone Corporation Procédé pour la détection d'un signal acoustique
EP0595457A1 (fr) * 1992-10-29 1994-05-04 Andrea Electronics Corporation Dispositif d'annulation de bruit
US5381473A (en) * 1992-10-29 1995-01-10 Andrea Electronics Corporation Noise cancellation apparatus
US5673325A (en) * 1992-10-29 1997-09-30 Andrea Electronics Corporation Noise cancellation apparatus
EP0624046A1 (fr) * 1993-05-06 1994-11-09 Adam Opel Ag Appareil de communication mains libres avec compensation de bruit dans des véhicules automobiles

Also Published As

Publication number Publication date
FR2305909B1 (fr) 1980-11-14

Similar Documents

Publication Publication Date Title
GB1458663A (en) Microphone circuits
US3057960A (en) Normalized sound control system
DK344182A (da) Radiotelefon med haandfri drift
SE8201598L (sv) Anordning for att reducera bruset i en talsignal som er blandad med brus
JPS56147525A (en) Reception playback system
FR2305909A1 (fr) Appareil microphonique pour la transmission de la parole dans une ambiance bruyante
DK315184D0 (da) Hoerehjaelpeapparat
US3518578A (en) Signal compression and expansion system
US3886314A (en) No hands voice instruction for EEG telemetering system
GB1518574A (en) Sound reproducing system
GB2211685A (en) Differential volume adjusters
US3073041A (en) Means for reducing cross talk noise
US3224115A (en) Automatic muting system
FR2312145A1 (fr) Circuit pour servir d'interface entre deux parties d'une voie de communication
ES445885A1 (es) Instalacion de escucha electronica.
FR2271725A1 (en) Telephonic conference system with speech detector - enables speech from one participant to block all other transmissions
CN204906663U (zh) 麦克风装置及音响系统
CN220108169U (zh) 一种耳机音频输出降噪装置
US2255517A (en) Talk-back communication system
US2881250A (en) Monitoring indication for communication system
KR830001727B1 (ko) 음성증폭장치의 하우링 억제방법
KR850002942A (ko) 차동 청진기
KR940007686B1 (ko) 다중소리 입력처리 장치
GB1328141A (en) Audio systems
JPS6429154A (en) Voice conference equipment

Legal Events

Date Code Title Description
ST Notification of lapse