AU1772783A - Environment-adaptive loudspeaker systems - Google Patents

Environment-adaptive loudspeaker systems

Info

Publication number
AU1772783A
AU1772783A AU17727/83A AU1772783A AU1772783A AU 1772783 A AU1772783 A AU 1772783A AU 17727/83 A AU17727/83 A AU 17727/83A AU 1772783 A AU1772783 A AU 1772783A AU 1772783 A AU1772783 A AU 1772783A
Authority
AU
Australia
Prior art keywords
environment
loudspeaker systems
adaptive loudspeaker
adaptive
systems
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.)
Abandoned
Application number
AU17727/83A
Inventor
Adams Glyn John
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.)
B&W Loudspeakers Ltd
Original Assignee
B&W Loudspeakers Ltd
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 B&W Loudspeakers Ltd filed Critical B&W Loudspeakers Ltd
Publication of AU1772783A publication Critical patent/AU1772783A/en
Abandoned 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
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • 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
    • H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
    • H03G9/14—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for gain control and tone control
    • H03G9/16—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for gain control and tone control incorporating negative feedback

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
AU17727/83A 1982-06-30 1983-06-29 Environment-adaptive loudspeaker systems Abandoned AU1772783A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8218866 1982-06-30
GB8218866 1982-06-30
PCT/GB1983/000163 WO1984000274A1 (en) 1982-06-30 1983-06-29 Environment-adaptive loudspeaker systems

Publications (1)

Publication Number Publication Date
AU1772783A true AU1772783A (en) 1984-01-26

Family

ID=10531377

Family Applications (1)

Application Number Title Priority Date Filing Date
AU17727/83A Abandoned AU1772783A (en) 1982-06-30 1983-06-29 Environment-adaptive loudspeaker systems

Country Status (4)

Country Link
EP (1) EP0113370A1 (en)
AU (1) AU1772783A (en)
GB (1) GB2131651B (en)
WO (1) WO1984000274A1 (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3429147C2 (en) * 1984-08-08 1987-04-02 Friedrich 6650 Homburg Müller Arrangement for acoustic feedback of loudspeakers
GB2196815B (en) * 1986-09-25 1989-01-11 David Robin Birt Motional feedback system for loudspeakers
JP2682014B2 (en) * 1988-06-10 1997-11-26 石川島播磨重工業株式会社 Hydraulic drive speaker
FR2635428B1 (en) * 1988-08-11 1994-03-11 Vient Jean Louis SELF-DRIVING LONG-RANGE SOUND RESTITUTION PROCESS
GB2260875B (en) * 1991-10-23 1995-06-28 Anthony Best Dynamics Ltd Noise source
GB2264208B (en) * 1992-02-15 1996-05-22 Maximilian Hans Hobelsberger A loudspeaker system
CH685657A5 (en) * 1992-03-24 1995-08-31 Maximilian Hobelsberger An active simulation of an acoustic impedance.
US5812686A (en) * 1992-03-24 1998-09-22 Hobelsberger; Maximilian Hans Device for active simultation of an acoustical impedance
JP3097340B2 (en) * 1992-08-19 2000-10-10 ソニー株式会社 Headphone equipment
GB2292854B (en) * 1994-08-12 1999-08-25 Motorola Ltd Electronic audio device and method of operation
GB9513894D0 (en) * 1995-07-07 1995-09-06 Univ Salford The Loudspeaker circuit
US5666427A (en) * 1995-09-30 1997-09-09 Samsung Heavy Industries Co. Ltd. Method of and apparatus for controlling noise generated in confined spaces
DK0772374T3 (en) 1995-11-02 2009-02-02 Bang & Olufsen As Method and apparatus for controlling the functionality of a loudspeaker in a room
US6353670B1 (en) 1996-07-02 2002-03-05 Donald R. Gasner Actively control sound transducer
DE19746645C1 (en) * 1997-10-22 1999-05-20 Fraunhofer Ges Forschung Adaptive acoustic monitor
DK199901256A (en) * 1998-10-06 1999-10-05 Bang & Olufsen As Multimedia System
US20010012792A1 (en) * 1999-05-27 2001-08-09 Matthew J. Murray Automatically adjusting acoustic output of the speaker of a telephone handset
EP1126684A1 (en) * 2000-02-14 2001-08-22 Ascom AG Method for controlling the sound volume of an electro-acoustic transducer
DE102005048905B3 (en) * 2005-10-10 2006-08-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Active channel noise attenuator having several acoustic sensors to detect the noise field parameters at the loud speaker
GB2499026B (en) 2012-02-03 2014-05-28 Canon Kk A loudspeaker driver with sensing coils for sensing the position and velocity of a voice-coil
GB2532794A (en) * 2014-11-28 2016-06-01 Digital Audio S A Versatile electroacoustic diffuser-absorber
CN110402585B (en) * 2017-03-10 2021-12-24 三星电子株式会社 Indoor low-frequency sound power optimization method and device
US10469046B2 (en) * 2017-03-10 2019-11-05 Samsung Electronics Co., Ltd. Auto-equalization, in-room low-frequency sound power optimization
WO2021204400A1 (en) * 2020-04-09 2021-10-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for automatic adaption of a loudspeaer to a listening environment

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2141141A1 (en) * 1971-08-12 1973-02-22 Neumann Gmbh Georg CIRCUIT ARRANGEMENT FOR COUPLING OF A SPEAKER
FR2199241B1 (en) * 1972-09-11 1978-11-10 Matsushita Electric Ind Co Ltd
GB1542264A (en) * 1975-04-24 1979-03-14 Acoustic Res Int Loudspeaker systems
DE2538073A1 (en) * 1975-08-27 1977-03-10 Elektroakustische Geraete H Hi Drive circuit for loudspeaker - has feedback dependent on difference between membrane movement and input signal
DE2626652C3 (en) * 1976-06-15 1979-11-22 Friedemann Dipl.-Ing. 8000 Muenchen Meggl Control arrangement for sound transmitters
DE2637414C3 (en) * 1976-08-19 1979-06-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Amplitude measuring device for servo control of a loudspeaker
FR2413009A1 (en) * 1977-12-20 1979-07-20 Oceanic Automatic acoustic frequency response corrector for speakers - stores output of one filter to compare with signal passed through remaining filters to control attenuator
US4306113A (en) * 1979-11-23 1981-12-15 Morton Roger R A Method and equalization of home audio systems
US4316060A (en) * 1980-01-04 1982-02-16 Dbx, Inc. Equalizing system
FR2478409A1 (en) * 1980-03-13 1981-09-18 Desclaux Jean Francois AUTOMATIC CORRECTOR FOR FREQUENCY TRANSMISSION CHARACTERISTICS OF AN ELECTROACOUSTIC CHANNEL

Also Published As

Publication number Publication date
GB2131651B (en) 1986-10-22
GB2131651A (en) 1984-06-20
EP0113370A1 (en) 1984-07-18
GB8402824D0 (en) 1984-03-07
WO1984000274A1 (en) 1984-01-19

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