GB2265520B - Device for active simulation of an acoustical impedance - Google Patents

Device for active simulation of an acoustical impedance

Info

Publication number
GB2265520B
GB2265520B GB9306098A GB9306098A GB2265520B GB 2265520 B GB2265520 B GB 2265520B GB 9306098 A GB9306098 A GB 9306098A GB 9306098 A GB9306098 A GB 9306098A GB 2265520 B GB2265520 B GB 2265520B
Authority
GB
United Kingdom
Prior art keywords
acoustical impedance
active simulation
simulation
active
acoustical
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
GB9306098A
Other versions
GB9306098D0 (en
GB2265520A (en
Inventor
Maximilian Hans Hobelsberger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9306098D0 publication Critical patent/GB9306098D0/en
Publication of GB2265520A publication Critical patent/GB2265520A/en
Application granted granted Critical
Publication of GB2265520B publication Critical patent/GB2265520B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2884—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure
    • H04R1/2888—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure for loudspeaker transducers
    • 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

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)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
GB9306098A 1992-03-24 1993-03-24 Device for active simulation of an acoustical impedance Expired - Fee Related GB2265520B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH91692A CH685657A5 (en) 1992-03-24 1992-03-24 An active simulation of an acoustic impedance.

Publications (3)

Publication Number Publication Date
GB9306098D0 GB9306098D0 (en) 1993-05-12
GB2265520A GB2265520A (en) 1993-09-29
GB2265520B true GB2265520B (en) 1996-02-14

Family

ID=4198160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9306098A Expired - Fee Related GB2265520B (en) 1992-03-24 1993-03-24 Device for active simulation of an acoustical impedance

Country Status (4)

Country Link
AT (1) AT406105B (en)
CH (1) CH685657A5 (en)
DE (1) DE4308961B4 (en)
GB (1) GB2265520B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6088459A (en) * 1997-10-30 2000-07-11 Hobelsberger; Maximilian Hans Loudspeaker system with simulated baffle for improved base reproduction
GB2532796A (en) * 2014-11-28 2016-06-01 Relec Sa Low frequency active acoustic absorber by acoustic velocity control through porous resistive layers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3821473A (en) * 1969-06-20 1974-06-28 J Mullins Sound reproduction system with driven and undriven speakers and motional feedback
GB2122051A (en) * 1982-06-01 1984-01-04 Goodmans Loudspeakers Limited Loudspeaker systems
WO1984000274A1 (en) * 1982-06-30 1984-01-19 B & W Loudspeakers Environment-adaptive loudspeaker systems
EP0332053A2 (en) * 1988-03-10 1989-09-13 Yamaha Corporation Acoustic apparatus
WO1991015933A1 (en) * 1990-04-09 1991-10-17 Max Hobelsberger Device for improving bass reproduction in loudspeaker systems with closed housings

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4327250A (en) * 1979-05-03 1982-04-27 Electro Audio Dynamics Inc. Dynamic speaker equalizer
DE3524280A1 (en) * 1985-07-06 1987-01-15 Michael Bolz SPEAKER WITH MEMBRANE COUNTERCOUPLING
DE4027511C1 (en) * 1990-08-30 1991-10-02 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3821473A (en) * 1969-06-20 1974-06-28 J Mullins Sound reproduction system with driven and undriven speakers and motional feedback
GB2122051A (en) * 1982-06-01 1984-01-04 Goodmans Loudspeakers Limited Loudspeaker systems
WO1984000274A1 (en) * 1982-06-30 1984-01-19 B & W Loudspeakers Environment-adaptive loudspeaker systems
EP0332053A2 (en) * 1988-03-10 1989-09-13 Yamaha Corporation Acoustic apparatus
WO1991015933A1 (en) * 1990-04-09 1991-10-17 Max Hobelsberger Device for improving bass reproduction in loudspeaker systems with closed housings

Also Published As

Publication number Publication date
CH685657A5 (en) 1995-08-31
DE4308961A1 (en) 1994-02-03
GB9306098D0 (en) 1993-05-12
GB2265520A (en) 1993-09-29
DE4308961B4 (en) 2005-08-18
AT406105B (en) 2000-02-25
ATA55793A (en) 1999-06-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090324