Multiple speaker type sound producing system

Details Multiple speaker type sound producing system Multiple speaker type sound producing system

1979-06-28

1983-05-03

Olms, Douglas W.

179 1GA, H04S 100

Patent

active

043821570

ABSTRACT:
A plurality of speaker devices are driven by two stereophonic audio signal sources through a signal distributing circuit having impedance means for equalizing the amplitudes of the driving signals applied to the speaker devices. The speaker devices thereby radiate sound to a point of listening symmetry for a more accurate reproduction of the sound radiation pattern corresponding to the stereophonic recordings from which the audio signal sources are derived.

REFERENCES:
patent: 2819342 (1958-01-01), Becker
patent: 3060266 (1962-10-01), Dow
patent: 3280258 (1966-10-01), Curtis
patent: 3342923 (1967-09-01), Henley
patent: 3818115 (1974-06-01), Hirano
"Phantom Channel for Stereo," by Burstein in Electronics World, Jun. 1959, pp. 46, 47 & 80.
"Adding the Third Channel", Audiocraft, in High Fidelity, Apr. 1959, pp. 109, 125, 126.
"Complete Systems, Loudspeaker/Room Relationships", in Wireless World, Aug. 1955, pp. 11-14.

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