Automatic sound volume control device for acoustic instruments

Details Automatic sound volume control device for acoustic instruments Automatic sound volume control device for acoustic instruments

1994-01-19

1995-08-22

Isen, Forester W.

Electrical audio signal processing systems and devices

Monitoring of sound

Amplification control responsive to ambient sound

381107, H03G 324

Patent

active

054447836

ABSTRACT:
The present invention relates to a sound volume control device whereby the sound volume of an audio device is automatically controlled as a function of background noise. The apparatus includes a background noise detector means for generating driving signals; means for generating a control signal corresponding to the driving signals; and means for controlling the audio signal in accordance with the control signal, thereby providing the most suitable sound volume according to the background noise without manually controlling a volume switch. In a preferred arrangement, the driving signals are also used to drive the segments of a digit display, to give a visual indication of the sound pressure of the background noise.

REFERENCES:
patent: 4868881 (1989-09-01), Zwicker et al.
patent: 5010306 (1991-04-01), Kutzavitch et al.
patent: 5081682 (1992-01-01), Kato et al.
Radio Shack 1990 Catalog, p. 42, "Sound Level Meter".
GenRad Brochure on "The GR 1981 Precision Sound Level Meter", Received Oct. 31, 1979.

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