| 摘要 |
A microcomputer for automatically controlling an audio output from a receiver. The microcomputer calculates a power signal corresponding to the power of a detected audio input signal, determines whether the calculated power signal is above or below a predetermined power value, generates a power control signal in response to whether the calculated power signal is above or below said predetermined value, and uses the power control signal to automatically maintain a substantially constant audio output from the receiver. In another embodiment, a separate detection circuit calculated the power signal and feeds it to the microcomputer.
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