AU1051588A - Method for equalizing the amplitude/frequency response of an electroacoustic transducer assembly, corresponding transducer assembly - Google Patents

Method for equalizing the amplitude/frequency response of an electroacoustic transducer assembly, corresponding transducer assembly

Info

Publication number
AU1051588A
AU1051588A AU10515/88A AU1051588A AU1051588A AU 1051588 A AU1051588 A AU 1051588A AU 10515/88 A AU10515/88 A AU 10515/88A AU 1051588 A AU1051588 A AU 1051588A AU 1051588 A AU1051588 A AU 1051588A
Authority
AU
Australia
Prior art keywords
transducer assembly
transducers
amplitude
equalizing
transducer
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
AU10515/88A
Inventor
Claude Benoit
Vincent Benoit
Clement Eloise-Pillerault
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 AU1051588A publication Critical patent/AU1051588A/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
    • 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 
    • 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
    • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
    • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding 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
    • 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 
    • H04R1/227—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  using transducers reproducing the same frequency band
    • 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

Landscapes

  • 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)
  • Transducers For Ultrasonic Waves (AREA)
  • Amplifiers (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

The field of the invention is that of electro-acoustic transducers. The aim is to provide an equalization method, and more generally a method for correcting the restored signal, without affecting the output of the transducers. This aim is reached with a method using at least two transducers, the second transducer (2) being so selected as to have a response amplitude/frequency curve (C) which is substantially complementary to that (A) of the first transducer (1) in order to form by adding sound signals from said transducers a resulting corrected sound signal, due to the mutual compensation of irregularities inherent to each curve (A), (C). A preferred application of such electro-acoustic transducer system is the high power sound production in congress and concert halls, or more generally the provision of sounds in any place where a public event is held.
AU10515/88A 1986-12-12 1987-12-11 Method for equalizing the amplitude/frequency response of an electroacoustic transducer assembly, corresponding transducer assembly Abandoned AU1051588A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8617423A FR2608343B1 (en) 1986-12-12 1986-12-12 METHOD FOR EQUALIZING THE AMPLITUDE / FREQUENCY RESPONSE OF AN ELECTROACOUSTIC TRANSDUCER ASSEMBLY, CORRESPONDING TRANSDUCER ASSEMBLY
FR8617423 1986-12-12

Publications (1)

Publication Number Publication Date
AU1051588A true AU1051588A (en) 1988-06-30

Family

ID=9341840

Family Applications (1)

Application Number Title Priority Date Filing Date
AU10515/88A Abandoned AU1051588A (en) 1986-12-12 1987-12-11 Method for equalizing the amplitude/frequency response of an electroacoustic transducer assembly, corresponding transducer assembly

Country Status (7)

Country Link
EP (1) EP0335892B1 (en)
KR (1) KR890700298A (en)
AT (1) ATE91838T1 (en)
AU (1) AU1051588A (en)
DE (1) DE3786672D1 (en)
FR (1) FR2608343B1 (en)
WO (1) WO1988004513A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2229876B (en) * 1989-02-03 1992-09-16 Andrew Ive Sound reproduction system
AU1366297A (en) 1995-12-22 1997-07-17 A/S Bruel & Kjaer A system and a method for measuring a continuous signal

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2135089B3 (en) * 1971-05-06 1974-04-05 Bouyer Paul
GB1403354A (en) * 1971-05-25 1975-08-28 Gabr S Z M Loudspeaker cabinets
US3845246A (en) * 1973-03-28 1974-10-29 Gte Sylvania Inc Speaker system
US3858679A (en) * 1973-11-15 1975-01-07 Jack Askins Loudspeaker system which produces stereo-like sounds
CH558119A (en) * 1974-02-18 1975-01-15 Lanfranchi Maurice Enclosure of loud speakers - contains two sub-enclosures positioned to eliminate resonance frequency by phase cancellation
FR2304237A1 (en) * 1975-03-12 1976-10-08 Leon Joseph High fidelity loudspeaker enclosure - has two similar loudspeakers which are fitted in two separate compartments of equal volume and with adjustable coupling
US4064966A (en) * 1976-03-11 1977-12-27 Burton William D Loudspeaker apparatus
FR2418990A1 (en) * 1978-03-03 1979-09-28 Brothier Laboratoires Two chamber loudspeaker enclosure - has flexible sheet partition initially variable in position to optimise frequency characteristics
US4276446A (en) * 1979-10-05 1981-06-30 Taddeo Anthony R Acoustic transducer system
US4509615A (en) * 1980-02-04 1985-04-09 Hruby John O Multi-chamber enclosure for loudspeakers

Also Published As

Publication number Publication date
EP0335892A1 (en) 1989-10-11
EP0335892B1 (en) 1993-07-21
KR890700298A (en) 1989-03-11
FR2608343A1 (en) 1988-06-17
DE3786672D1 (en) 1993-08-26
WO1988004513A1 (en) 1988-06-16
FR2608343B1 (en) 1989-06-16
ATE91838T1 (en) 1993-08-15

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