ES2069969T3 - OMNIDIRECTIONAL SOUNDING DEVICE. - Google Patents

OMNIDIRECTIONAL SOUNDING DEVICE.

Info

Publication number
ES2069969T3
ES2069969T3 ES92400004T ES92400004T ES2069969T3 ES 2069969 T3 ES2069969 T3 ES 2069969T3 ES 92400004 T ES92400004 T ES 92400004T ES 92400004 T ES92400004 T ES 92400004T ES 2069969 T3 ES2069969 T3 ES 2069969T3
Authority
ES
Spain
Prior art keywords
loudspeaker
enclosure
compression chamber
rotationally symmetric
exit
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 - Lifetime
Application number
ES92400004T
Other languages
Spanish (es)
Inventor
Marie-Helene Verrier-Murillo
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.)
MAJORCOM
Original Assignee
MAJORCOM
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 MAJORCOM filed Critical MAJORCOM
Application granted granted Critical
Publication of ES2069969T3 publication Critical patent/ES2069969T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type 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 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • 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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Burglar Alarm Systems (AREA)
  • Aerials With Secondary Devices (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

Omnidirectional loudspeaker arrangement which comprises a rotationally symmetric enclosure (1) provided with a loudspeaker (2) centred on the axis of symmetry (XX') and pointing axially towards the outside of the enclosure, and a distributor element or acoustic wave reflector (3) rotationally symmetric about the said axis of symmetry and arranged opposite the loudspeaker and connected mechanically to the enclosure. The distributor element delimits, with the enclosure, a rotationally symmetric space consisting on the one hand of a central volume (10) in front of the loudspeaker forming a compression chamber for acoustic waves from the audible spectrum which are produced by the loudspeaker, the cross-section (9) of the peripheral exit of the compression chamber being smaller than the surface area of the diaphragm (16) of the loudspeaker, and on the other hand of a horn of revolution (11) whose annular entrance (9) is constituted by the peripheral exit of the compression chamber and whose cross-section of revolution (14) increases from its annular entrance (9) up to its annular exit (12). <IMAGE>
ES92400004T 1991-01-04 1992-01-02 OMNIDIRECTIONAL SOUNDING DEVICE. Expired - Lifetime ES2069969T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9100076A FR2671445B1 (en) 1991-01-04 1991-01-04 OMNIDIRECTIONAL SOUND SYSTEM.

Publications (1)

Publication Number Publication Date
ES2069969T3 true ES2069969T3 (en) 1995-05-16

Family

ID=9408462

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92400004T Expired - Lifetime ES2069969T3 (en) 1991-01-04 1992-01-02 OMNIDIRECTIONAL SOUNDING DEVICE.

Country Status (5)

Country Link
EP (1) EP0494124B1 (en)
AT (1) ATE115822T1 (en)
DE (1) DE69200854T2 (en)
ES (1) ES2069969T3 (en)
FR (1) FR2671445B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10341213B4 (en) * 2003-09-04 2006-04-13 Don't Panic Die Case-Manufactur Gmbh Sound diffuser arrangement for a loudspeaker system
CN106604176B (en) * 2017-01-25 2023-11-03 深圳市创锐智汇科技有限公司 Sound box

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1943499A (en) * 1928-04-06 1934-01-16 Rca Corp Sound amplifier
US3819005A (en) * 1973-01-22 1974-06-25 J Westlund Loudspeaker cabinet with sound reflectors
GB2184323A (en) * 1985-12-12 1987-06-17 Midlen Trading Corp Loudspeaker system
DE3623092C1 (en) * 1986-07-09 1988-02-04 Wandel & Goltermann Omnidirectional horn speaker

Also Published As

Publication number Publication date
DE69200854T2 (en) 1995-07-27
EP0494124A1 (en) 1992-07-08
ATE115822T1 (en) 1994-12-15
FR2671445A1 (en) 1992-07-10
DE69200854D1 (en) 1995-01-26
EP0494124B1 (en) 1994-12-14
FR2671445B1 (en) 1995-07-28

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