Patent ID: 8243957
Filing Date: 2012-08-14
Classification: H04R

Abstract:
1. An audio control apparatus, comprising: a processing module, receiving and processing an audio signal according to a control signal, and generating a processed signal; an amplification module, coupled to the processing module, amplifying the processed signal to generate an output signal; and a control module, coupled to the processing module and the amplification module, receiving the output signal to generate the control signal, and comprising: a receiving module, converting the output signal to generate a receiving current, and comprising: a determination unit, receiving the output signal, and determining a magnitude of the output signal to generate a determination signal; a rectifier unit, coupled to the determination unit, performing rectification on the determination signal to generate a rectification current; and a conversion unit, coupled to the rectifier unit, converting the rectification current to the receiving current; and a gain control module, coupled to the receiving module, generating the control signal according to the receiving current.