Signal decoding system

Details Signal decoding system Signal decoding system

1984-02-21

1986-05-13

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Quadrasonic

381 18, H04R 500

Patent

active

045891290

ABSTRACT:
A signal decoding system for use in a quadraphonic type sound reproducing system is disclosed. In accordance with one aspect of the invention, a multiband expander is used to control the steering of the four information signals decoded from the two input signals. In accordance with another aspect of the invention, the difference between the rear and front signals is used to enhance virtual sound images to one side of a listener.

REFERENCES:
patent: 3772479 (1973-11-01), Hilbert
patent: 3885101 (1975-05-01), Ito et al.
patent: 4121059 (1978-10-01), Nakabayashi
patent: 4139728 (1979-02-01), Haramoto et al.

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