GB830745A - Improvements in or relating to loud-speaker assemblies - Google Patents
Improvements in or relating to loud-speaker assembliesInfo
- Publication number
- GB830745A GB830745A GB1785656A GB1785656A GB830745A GB 830745 A GB830745 A GB 830745A GB 1785656 A GB1785656 A GB 1785656A GB 1785656 A GB1785656 A GB 1785656A GB 830745 A GB830745 A GB 830745A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sound
- revolution
- loud
- parabola
- axis
- 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
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
- H04R1/32—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)
Abstract
830,745. Sound directing appliances. QUENNELL, A. M. June 7, 1957 [June 8, 1956], No. 17856/56. Class 13. In a sound directing arrangement, a sound reflecting surface 1, Fig. 1, is constituted by the partial revolution of a portion of a parabola 2 about an axis 3 intersecting the parabola axis 5 at the focus 4, the angle of revolution determining the dispersion zone of sound which is produced by a conical loud-speaker positioned on the axis of revolution with its apparent point source of sound located at the parabola focus. The axes 3 and 5 intersect at right-angles, and in one arrangement the angle of revolution may be 180 degrees, as shown in Fig. 2, so as to provide sound dispersion over a similar angle. Constructional details are disclosed, Fig. 3, in which the loud-speaker is mounted in the top wall of a totally enclosed or a vented box 10, the reflector 1 being suspended above the loudspeaker and providing horizontal sound dispersion through a predetermined zone.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1785656A GB830745A (en) | 1956-06-08 | 1956-06-08 | Improvements in or relating to loud-speaker assemblies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1785656A GB830745A (en) | 1956-06-08 | 1956-06-08 | Improvements in or relating to loud-speaker assemblies |
Publications (1)
Publication Number | Publication Date |
---|---|
GB830745A true GB830745A (en) | 1960-03-16 |
Family
ID=10102416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1785656A Expired GB830745A (en) | 1956-06-08 | 1956-06-08 | Improvements in or relating to loud-speaker assemblies |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB830745A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989000799A1 (en) * | 1987-07-21 | 1989-01-26 | Hughes Aircraft Company | Loudspeaker system with wide dispersion baffle |
AU598396B2 (en) * | 1987-07-21 | 1990-06-21 | Srs Labs, Inc | Loudspeaker system with wide dispersion baffle |
US5784468A (en) * | 1996-10-07 | 1998-07-21 | Srs Labs, Inc. | Spatial enhancement speaker systems and methods for spatially enhanced sound reproduction |
US9813805B2 (en) | 2013-10-16 | 2017-11-07 | Bang & Olufsen A/S | Apparatus for redistributing acoustic energy |
-
1956
- 1956-06-08 GB GB1785656A patent/GB830745A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989000799A1 (en) * | 1987-07-21 | 1989-01-26 | Hughes Aircraft Company | Loudspeaker system with wide dispersion baffle |
US4836329A (en) * | 1987-07-21 | 1989-06-06 | Hughes Aircraft Company | Loudspeaker system with wide dispersion baffle |
AU598396B2 (en) * | 1987-07-21 | 1990-06-21 | Srs Labs, Inc | Loudspeaker system with wide dispersion baffle |
US5784468A (en) * | 1996-10-07 | 1998-07-21 | Srs Labs, Inc. | Spatial enhancement speaker systems and methods for spatially enhanced sound reproduction |
US9813805B2 (en) | 2013-10-16 | 2017-11-07 | Bang & Olufsen A/S | Apparatus for redistributing acoustic energy |
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