Center mode control circuit

Details Center mode control circuit Center mode control circuit

1989-08-07

1990-12-25

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Center channel

H04S 300

Patent

active

049809156

ABSTRACT:
A center mode control circuit includes an amplifying portion (31) for amplifying a center input signal, a switch (34) connected to an input terminal of the amplifying portion, and capacitors (35, 36) selected by the switch and having different characteristic from each other. The modes that are switched are (a) a normal mode for adding a low frequency component of the center input signal to left and right input signals, (b) a phantom mode for adding a full range of the center input signal to the left and the right stereo input signals, and (c) a wide mode for not adding the center input signal to the left and the right stereo input signals.

REFERENCES:
patent: 3016424 (1962-01-01), Franke
"Nikkei Electronics", issued Jun. 27, 1988; pp. 88-89.

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