Electrical audio signal processing systems and devices – Including amplitude or volume control
Patent
1990-09-26
1993-04-20
Isen, Forester W.
Electrical audio signal processing systems and devices
Including amplitude or volume control
381 92, 381109, 381119, H03G 300
Patent
active
052049086
ABSTRACT:
A multichannel sound system comprising a plurality of microphones and loudspeakers. Rate controlled, variable attenuation of the audio signal is provided as a function of loudspeaker and microphone proximity. The use of optical isolators or analog switches with RC delay circuits to control the rate of attenuation eliminates objectionable switching transients. Selective attenuation of loudspeakers in proximity to active microphones eliminates audio feedback.
REFERENCES:
patent: 3508007 (1970-04-01), Goodall et al.
patent: 3992584 (1976-11-01), Dugan
patent: 4068092 (1978-01-01), Ikoma et al.
patent: 4134323 (1979-01-01), Markowitz
patent: 4184048 (1980-01-01), Alcaide
patent: 4448074 (1984-05-01), Schmidt
patent: 4449238 (1984-05-01), Lee et al.
patent: 4598418 (1986-07-01), Griffith, Jr. et al.
patent: 4675905 (1987-06-01), Flora et al.
Noll, FET/principles, experiments, and projects, 1975, pp. 221-223.
Duggan Donovan F.
Isen Forester W.
Lectrosonics, Inc.
Peacock Deborah A.
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