I concur - rumble is a more apt description for me too, but there’s a little whooshing. This reminds me of an article that I once read (couldn’t find it, but I

I concur - rumble is a more apt description for me too, but there’s a little whooshing. This reminds me of an article that I once read (couldn’t find it, but I believe it was about [1] - Quest for Zero-Decibels). In absolute silence, all sorts of bodily noises crop up - your heartbeat, creaking bones and muscles, popping noises, etc. [1] https://www.goodreads.com/book/show/7932161-zero-decibels# https://www.goodreads.com/book/show/7932161-zero-decibels#