Multichannel audio reproduction system

Details Multichannel audio reproduction system Multichannel audio reproduction system

1984-03-26

1986-09-16

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Hearing aid

381 18, 381 1, H04R 500

Patent

active

046126635

ABSTRACT:
A multichannel reproduction system for use with a source providing left (L) and (R) signals includes circuitry for developing difference signals L-R and R-L which are delivered to individual ones of four speakers arranged in a specific T-configuration. The L and R signals are delivered to the left and right speakers in the T-configuration, respectively, while the top speaker in the "T" between the left and right speakers receives the L-R signal and the bottom speaker at the foot of the "T" receives the R-L signal. Alternately, the L-R signal is delivered to the top speaker and the R-L signal to the bottom speaker.

REFERENCES:
patent: 3632886 (1972-01-01), Schieber
patent: 3697692 (1972-10-01), Hafler
patent: 3745254 (1973-07-01), Ohta et al.
patent: 3757047 (1973-09-01), Ito et al.
patent: 3783192 (1974-01-01), Takahashi
patent: 3885101 (1975-05-01), Ito et al.
patent: 3892917 (1975-07-01), Sotome
patent: 3971890 (1976-07-01), Bauer
patent: 4489432 (1984-12-01), Polk
Berger "Observations and Reservations About Four-Channel, SR/Jul. 25, 1970; p. 51.
Hafler, "A New Quadraphonic System", Audio, Jul. 1970; pp. 24, 26, 56-57.

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