Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
Patent
1994-03-07
1996-03-05
Kuntz, Curtis
Electrical audio signal processing systems and devices
Binaural and stereophonic
Pseudo stereophonic
381 1, 381 17, 381 24, H04R 500
Patent
active
054974259
ABSTRACT:
A passive multi channel surround sound simulation device has a pair of input jacks for receiving a two channel stereophonic signal having a speaker level. An electronic circuit produces from the two channel signal left and right primary speaker level outputs, left and right secondary speaker level outputs, a mono center line level output, left and right secondary line level outputs, and a surround ground separate from an input ground. First, second and third voltage dividers reduce the stereophonic signal speaker level to a line level of about 10% of that which appears at the left and right primary speaker level outputs, for directing to the mono line level output, and the left and right secondary line level outputs respectively. The left and right primary speaker level outputs are connected to left and right front speakers respectively. The left and right secondary speaker level outputs are connected to left and right rear speakers respectively. The mono center line level output is connected to a center speaker through an amplifier. The left and right secondary line level outputs allow connection to left and right rear speakers through further amplification.
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Installation News, vol. 5, No. 8, Jun. 8, 1988.
Kuntz Curtis
Larson Herbert W.
Larson James E.
Mei Xu
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