Level control circuit for low and medium sound

Details Level control circuit for low and medium sound Level control circuit for low and medium sound

1990-04-30

1992-12-29

Isen, Forester W.

Electrical audio signal processing systems and devices

Including frequency control

381 28, H03G 500

Patent

active

051757702

ABSTRACT:
A level control circuit for low and medium sound having an audio signal amplification output circuit, a low and medium sound signal detection circuit, and an amplification output circuit includes a control signal detection circuit for detecting a peak of the output signal and a gain control circuit for controlling a signal gain according to the output of the control signal detection circuit. The level control circuit may drive an exclusive speaker for low and medium sound with controlling the gain of the low and medium sound signal detected from left and right audio signals.

REFERENCES:
patent: 3668532 (1972-06-01), Potash
patent: 4182930 (1980-01-01), Blackmer
patent: 4408095 (1983-10-01), Ariga et al.
patent: 4841573 (1989-06-01), Fujita
patent: 4982435 (1991-01-01), Kato et al.
patent: 4984273 (1991-01-01), Aylward et al.

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