I can do the same and also didn't know how to explain it until I stumbled upon this subreddit: https://www.reddit.com/r/earrumblersassemble/ https://www.reddit.

I can do the same and also didn't know how to explain it until I stumbled upon this subreddit: https://www.reddit.com/r/earrumblersassemble/ https://www.reddit.com/r/earrumblersassemble/ So apparently we can control our tensor tympani muscle: https://en.wikipedia.org/wiki/Tensor_tympani_muscle https://en.wikipedia.org/wiki/Tensor_tympani_muscle