High fidelity sound reproduction system and modules thereof

Details High fidelity sound reproduction system and modules thereof High fidelity sound reproduction system and modules thereof

1976-08-19

1977-11-08

Stellar, George G.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

181145, 181150, 181153, H04R 102

Patent

active

040576892

ABSTRACT:
A multiplicity of sound modules are mounted on a number of baffle plates which define an essentially continuous surface, e.g., a ceiling. Each sound module consists of a loudspeaker and a cavity-defining member which may be a thin-walled shell or a rectangular block of lightweight material, e.g., foamed polystyrene. The cavities are preferably spherical and of equal size, and the loudspeakers are preferably identical and electrically interconnected for simultaneous reproduction of a common input signal.
The baffle plates are chosen to correlate with existing interior designs, and thus may be flat or curved, and may cooperatively or individually support one, two or several sound modules. When 2 by 2-foot acoustic tiles are employed, the invention may be thought of as embodied in like units each consisting of a factory assembly of at least one loudspeaker, the same number of cavity-defining members, and a baffle plate in the form of an acoustic tile, the latter not necessarily being of sound absorbent material. The baffle plates collectively cooperate with other interior walls to define a secondary enclosure.

REFERENCES:
patent: 1741274 (1929-12-01), Baumann
patent: 2881850 (1959-04-01), Bonn
patent: 2982372 (1961-05-01), Lowell
patent: 3275100 (1966-09-01), Dunning
patent: 3473625 (1969-10-01), Heisrath
patent: 3719250 (1973-03-01), Maekawa
patent: 3720285 (1973-03-01), Russell et al.
patent: 3754618 (1973-08-01), Sasaki
patent: 3912865 (1975-10-01), Seebinger

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