Electrical audio signal processing systems and devices – Including frequency control – Having automatic equalizer circuit
Patent
1988-08-08
1990-09-04
Isen, Forester W.
Electrical audio signal processing systems and devices
Including frequency control
Having automatic equalizer circuit
333 28T, H03G 500
Patent
active
049550586
ABSTRACT:
Apparatus for equalizing a soundfield comprises an amplifier and a gain control circuit for selectively adjusting the gain of the amplifier as a function of frequency in response to data values received by the gain control circuit. The apparatus has power supply terminals for supplying operating current from an external power source to the amplifier and the gain control circuit. In addition, the apparatus comprises an electronic storage device for storing data values and applying those data values to the gain control circuit. The stored data values are maintained in the apparatus upon interruption of the supply of operating current to the power supply terminals. The apparatus has an input port for applying data values to the storage device, and does not have manually actuable controls for selectively adjusting the stored data values.
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Rimkeit Eugene
Schomburg Richard
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