Continuous differential signal equalizer

Details Continuous differential signal equalizer Continuous differential signal equalizer

1986-05-12

1989-07-25

Isen, Forester W.

Electrical audio signal processing systems and devices

Including frequency control

Having automatic equalizer circuit

381 59, H03G 500

Patent

active

048521760

ABSTRACT:
A method of processing an audio signal to provide automatic continuous correction for the variable efficiency of the loudspeaker system under varying amplitude and frequency conditions. The signal is continuously sampled for frequency and amplitude components over time. A microprocessor is programed to compensate for the actual performance of the specific loudspeaker system chosen under the signal conditions encountered. Two embodiments, one operating in the frequency domain, and the other operating in the time domain, are disclosed.

REFERENCES:
patent: 3798374 (1974-03-01), Meyers
patent: 4130727 (1978-12-01), Kates
patent: 4316060 (1982-02-01), Adams et al.
patent: 4340780 (1982-07-01), Odlen
patent: 4421949 (1983-12-01), Eberbach
patent: 4458362 (1984-07-01), Berkovitz et al.
patent: 4549289 (1985-10-01), Schwartz
patent: 4628530 (1986-12-01), Op de Beek
Audio Cyclopedia, 1979, pp. 1112 and 1115.

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