Low distortion audio muting circuit

Details Low distortion audio muting circuit Low distortion audio muting circuit

1997-11-20

2000-01-18

Lee, Ping

Electrical audio signal processing systems and devices

Noise or distortion suppression

Soft switching, muting, or noise gating

381104, H04B 1500

Patent

active

060163526

ABSTRACT:
A muting circuit is provided to mute an audio signal at an audio output. The muting circuit includes a switching device having an enable input and being adapted to be coupled between an audio output and ground, the switching device being on when the enable input is at a deenergized voltage level. A mute controller is coupled to receive a mute signal and provide a signal to the enable input of the switching device to bias the switching device on.

REFERENCES:
patent: 4390847 (1983-06-01), Yamada et al.
patent: 4683386 (1987-07-01), Kamikawara

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