| 摘要 |
The audio pulse noise compensation circuit includes: a first delaying circuit for delaying an audio input for a predetermined time; a sampler for sampling the delayed audio signal; an A/D converter for converting the signal of the sampler into a digital signal; a pulse noise detecting/control signal generater for generating a control signal during the noise detecting period by the input signals; a CPU for generating a control signal for a noise compensation by the output of the control signal generater; a D/A converter; a switch for grounding the output of the first delaying circuit only in a high section of the control signal; a second delaying circuit for re-delaying the output of the first delaying circuit; and a summer for summing the outputs of the second delaying circuit and D/A converter.
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