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KR890700298A - Method for correcting the amplitude / frequency response of an electroacoustic exchanger and the electroacoustic exchanger - Google Patents

Method for correcting the amplitude / frequency response of an electroacoustic exchanger and the electroacoustic exchanger

Info

Publication number
KR890700298A
KR890700298A KR1019880700960A KR880700960A KR890700298A KR 890700298 A KR890700298 A KR 890700298A KR 1019880700960 A KR1019880700960 A KR 1019880700960A KR 880700960 A KR880700960 A KR 880700960A KR 890700298 A KR890700298 A KR 890700298A
Authority
KR
South Korea
Prior art keywords
transducers
correcting
electroacoustic
exchanger
transducer
Prior art date
Application number
KR1019880700960A
Other languages
Korean (ko)
Inventor
엘로이제-필러라울트 클레마
번와 클라우드
번와 빈센트
Original Assignee
엘로이제-필러라울트 클레마
번와 클라우드
번와 빈센트
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 엘로이제-필러라울트 클레마, 번와 클라우드, 번와 빈센트 filed Critical 엘로이제-필러라울트 클레마
Publication of KR890700298A publication Critical patent/KR890700298A/en

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.
KR1019880700960A 1986-12-12 1988-08-10 Method for correcting the amplitude / frequency response of an electroacoustic exchanger and the electroacoustic exchanger KR890700298A (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
PCT/FR1987/000494 WO1988004513A1 (en) 1986-12-12 1987-12-11 Method for equalizing the amplitude/frequency response of an electro-acoustic transducer assembly, corresponding transducer assembly

Publications (1)

Publication Number Publication Date
KR890700298A true KR890700298A (en) 1989-03-11

Family

ID=9341840

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880700960A KR890700298A (en) 1986-12-12 1988-08-10 Method for correcting the amplitude / frequency response of an electroacoustic exchanger and the electroacoustic exchanger

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
EP0870176B1 (en) 1995-12-22 2003-03-19 Brüel & Kjaer Sound & Vibration Measurement A/S 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
AU1051588A (en) 1988-06-30
ATE91838T1 (en) 1993-08-15
EP0335892B1 (en) 1993-07-21
EP0335892A1 (en) 1989-10-11
FR2608343A1 (en) 1988-06-17
DE3786672D1 (en) 1993-08-26
WO1988004513A1 (en) 1988-06-16
FR2608343B1 (en) 1989-06-16

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application