Stereo expander

Details Stereo expander Stereo expander

1996-04-30

1999-11-16

Kuntz, Curtis

Electrical audio signal processing systems and devices

Binaural and stereophonic

381 81, 381 24, H04R 500

Patent

active

059871415

ABSTRACT:
A stereophonic audio processing system having left and right stereophonic sound channels with respective loudspeakers therefor is presented. The system is provided with spatial expansion of the stereophonic sound so that a first pair of spaced-apart loudspeakers will acoustically appear to be spaced further apart then they actually are. The audio system is provided with provisions for connecting a second pair of loudspeakers which can be spatially located at a distance between the loudspeakers which is larger than the first pair of loudspeakers. The audio system is provided with apparatus for providing stereo sound without spatial expansion when such secondary loudspeakers are used.

REFERENCES:
patent: 4742393 (1988-05-01), Sugai et al.
patent: 4748669 (1988-05-01), Klayman
patent: 4831652 (1989-05-01), Anderson et al.
patent: 4979217 (1990-12-01), Shipley
patent: 5005201 (1991-04-01), Rumreich et al.
patent: 5042068 (1991-08-01), Scholten et al.
patent: 5181247 (1993-01-01), Holl

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