OK, so the tapping is not loud enough....
and the clapping is loud enough
how can we make the tapping louder for the mics?
In general we need a threshhold and when the sound is less loud than the threshhold, he doesn't show anything (well, doesn't apply to tapping cause it's not loud enough anyway....).
When left and right are nearly same show MIDDLE - so allow for a small difference.
maybe try voice control instead?