The mic input is tricky. Usually, it has +5V on one conductor to power electret microphones. Some are stereo.A logic analyzer might work but I've never tried one. The signals typically are between 1000Hz & 2000Hz.
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The mic input is tricky. Usually, it has +5V on one conductor to power electret microphones. Some are stereo.A logic analyzer might work but I've never tried one. The signals typically are between 1000Hz & 2000Hz.
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