Count every click.

Teach the app your pen's sound, then it ignores everything else.

clicks detected

No fingerprint yet

Matched

0/0

Accuracy

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Avg gap

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Mic levelIdle

Mic boost6.0×

Sensitivity threshold0.08

Fingerprint match (needs learning)75%

Tap "Teach pen sound" and click your pen 5 times near the mic to build a fingerprint.