FR2433268A1 - IMPROVEMENTS IN OR RELATING TO ACOUSTIC DEVICES OF THE ACOUSTIC SPEAKER TYPE - Google Patents
IMPROVEMENTS IN OR RELATING TO ACOUSTIC DEVICES OF THE ACOUSTIC SPEAKER TYPEInfo
- Publication number
- FR2433268A1 FR2433268A1 FR7920021A FR7920021A FR2433268A1 FR 2433268 A1 FR2433268 A1 FR 2433268A1 FR 7920021 A FR7920021 A FR 7920021A FR 7920021 A FR7920021 A FR 7920021A FR 2433268 A1 FR2433268 A1 FR 2433268A1
- Authority
- FR
- France
- Prior art keywords
- acoustic
- relating
- speaker type
- devices
- sheath
- 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.)
- Granted
Links
- 239000013013 elastic material Substances 0.000 abstract 1
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
- H04R1/28—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
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
La présente invention concerne un dispositif acoustique. Le dispositif acoustique comprend un boîtier 1, dans lequel sont montées une tête de haut-parleur 2 et une gaine 3, les parois 4 de la gaine 3 étant réalisées en matière élastique poreuse. Application : radiodiffusion, radiophonographie, enregistrement-reproduction.The present invention relates to an acoustic device. The acoustic device comprises a housing 1, in which are mounted a loudspeaker head 2 and a sheath 3, the walls 4 of the sheath 3 being made of porous elastic material. Application: broadcasting, radiophonography, recording-reproduction.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2648740 | 1978-08-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2433268A1 true FR2433268A1 (en) | 1980-03-07 |
FR2433268B1 FR2433268B1 (en) | 1983-05-06 |
Family
ID=20778840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7920021A Granted FR2433268A1 (en) | 1978-08-11 | 1979-08-03 | IMPROVEMENTS IN OR RELATING TO ACOUSTIC DEVICES OF THE ACOUSTIC SPEAKER TYPE |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE2911849C3 (en) |
FI (1) | FI790850A (en) |
FR (1) | FR2433268A1 (en) |
GB (1) | GB2045578B (en) |
GR (1) | GR66647B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0334238A2 (en) * | 1988-03-25 | 1989-09-27 | Yamaha Corporation | Acoustic Apparatus |
EP0361445A2 (en) * | 1988-09-28 | 1990-04-04 | Yamaha Corporation | Acoustic apparatus |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3113281A1 (en) * | 1981-04-02 | 1982-10-21 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Loudspeaker box constructed as a bass reflex enclosure |
DE3920060A1 (en) * | 1989-06-20 | 1991-01-03 | Mb Electronic Gmbh | Loudspeaker housing with acoustically damped resonator opening |
DE3920041C1 (en) * | 1989-06-20 | 1990-12-06 | Amneus Engineering, Vaellingby, Se | |
DE9005642U1 (en) * | 1990-05-18 | 1990-08-02 | Salzburg, Herbert, Dr., 5000 Köln | Resonance housing for installing loudspeakers |
GB2318475B (en) * | 1996-10-21 | 2000-08-23 | B & W Loudspeakers | Enclosures for loudspeaker drive units |
US5892183A (en) * | 1997-07-26 | 1999-04-06 | U.S. Philips Corporation | Loudspeaker system having a bass-reflex port |
IT1399292B1 (en) * | 2009-11-17 | 2013-04-11 | Sonus Faber S P A | PROJECT CLAIM FOR THE RESONANCE ROOMS AGREEMENT IN SPEAKER SYSTEMS. |
GB2523143B (en) * | 2014-02-14 | 2021-04-28 | Gp Acoustics Uk Ltd | Loudspeaker bass reflex system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB747263A (en) * | 1953-05-21 | 1956-03-28 | Goodmans Ind Ltd | Improvements in or relating to loudspeaker cabinets |
FR2334259A1 (en) * | 1975-12-01 | 1977-07-01 | Art Acoustique Appliquee | Open labyrinth acoustic cabinet - has sectional sound pipe with fibre glass filter producing linear low frequency response |
FR2414275A1 (en) * | 1978-01-06 | 1979-08-03 | Chalambeau Max | Acoustic enclosure for loudspeaker - has two chambers linked by internal opening and both communicating with atmosphere via shared pipe |
-
1979
- 1979-03-13 FI FI790850A patent/FI790850A/en not_active Application Discontinuation
- 1979-03-19 GB GB7909529A patent/GB2045578B/en not_active Expired
- 1979-03-26 DE DE19792911849 patent/DE2911849C3/en not_active Expired
- 1979-05-11 GR GR59064A patent/GR66647B/el unknown
- 1979-08-03 FR FR7920021A patent/FR2433268A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB747263A (en) * | 1953-05-21 | 1956-03-28 | Goodmans Ind Ltd | Improvements in or relating to loudspeaker cabinets |
FR2334259A1 (en) * | 1975-12-01 | 1977-07-01 | Art Acoustique Appliquee | Open labyrinth acoustic cabinet - has sectional sound pipe with fibre glass filter producing linear low frequency response |
FR2414275A1 (en) * | 1978-01-06 | 1979-08-03 | Chalambeau Max | Acoustic enclosure for loudspeaker - has two chambers linked by internal opening and both communicating with atmosphere via shared pipe |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0334238A2 (en) * | 1988-03-25 | 1989-09-27 | Yamaha Corporation | Acoustic Apparatus |
EP0334238A3 (en) * | 1988-03-25 | 1991-01-30 | Yamaha Corporation | Acoustic apparatus |
US5173575A (en) * | 1988-03-25 | 1992-12-22 | Yamaha Corporation | Acoustic apparatus |
EP0361445A2 (en) * | 1988-09-28 | 1990-04-04 | Yamaha Corporation | Acoustic apparatus |
EP0361445A3 (en) * | 1988-09-28 | 1991-05-22 | Yamaha Corporation | Acoustic apparatus |
US5109422A (en) * | 1988-09-28 | 1992-04-28 | Yamaha Corporation | Acoustic apparatus |
Also Published As
Publication number | Publication date |
---|---|
GB2045578A (en) | 1980-10-29 |
GB2045578B (en) | 1983-05-05 |
DE2911849B2 (en) | 1981-03-12 |
GR66647B (en) | 1981-04-07 |
FR2433268B1 (en) | 1983-05-06 |
FI790850A (en) | 1980-02-12 |
DE2911849A1 (en) | 1980-03-20 |
DE2911849C3 (en) | 1981-12-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |