Multichannel sound signal processing system employing voltage co

Details Multichannel sound signal processing system employing voltage co Multichannel sound signal processing system employing voltage co

1974-08-20

1976-09-21

Olms, Douglas W.

179 1GP, 1791004ST, H04R 500

Patent

active

039820718

ABSTRACT:
A circuit for controlling the application of one or more audio signals to a plurality of channels incorporates a series of voltage controlled amplifiers for interconnecting an individual signal source with different channels at different times, and a control apparatus for selectively energizing the voltage controlled amplifiers in a selected sequence and at selected times so that the signal can be applied successively to the channels in accordance with the selected pattern or program. A second plurality of voltage controlled amplifiers are provided to accomplish the same function with respect to a second signal source, and the program for the energization of the second group of voltage controlled amplifiers may be the same or different from the first program. When the channels are connected to four loudspeakers, placed at four corners of a square, an unusual acoustic effect is produced, by which the two signal sources seem to a listener to move about the room as the various voltage controlled amplifiers are energized. When the channels are connected to multichannel recording apparatus, the effects are produced by conventional quadraphonic reproduction techniques on playback. The processing of the present invention may also be performed during playback of a recording made using the present invention, with unusual acoustic effects.

REFERENCES:
patent: 3710034 (1973-01-01), Murry
patent: 3757046 (1973-09-01), Williams

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