Gain controller

Details Gain controller Gain controller

H - Electricity

03

G

179/10

H03G 5/10 (2006.01) H03G 9/02 (2006.01)

Patent

CA 2006288

ABSTRACT OF THE INVENTION An improved gain controller for use in an audio equip- ment for controlling a gain of an audio signal without causing any clipping distortion and keeping a good S/N ratio. The gain controller is accordance with this invention comprises a tone controller for setting a frequency characteristic for attaining a preferable tone, a first electronic volume controller arranged at the front stage of the tone controller for attenuating an input signal, a second electronic volume controller arranged at the rare stage of the tone controller for attenuating the signal therefrom and a microprocessor for controlling the first electronic volume controller, the second electronic volume controller and the tone controller in a cooperative manner, thereby the amount of attenuation at the first electronic volume controller is determined by the microprocessor in response to the selected frequency characteristic in the tone controller and the amount of attenuation at the second electronic volume controller is determined by the microprocessor in response to the total attenuation in the whole system.

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