That wasn't meant to be entirely serious, Dick.
Perhaps I should have phrased it differently.
"....singing solo, unaccompanied and in a room of twenty or so other people (or fewer) who are all sitting in a respectful silence.
If someone can't hear themselves under those circumstances, they're possibly not terribly good at listening."
If you really can't hear yourself when you're the only person making any sound, then no, I don't pretend to know what's going on there.