Generating Tinnitus Tones with Jaw Movement When Wearing Earplugs

When I wear earplugs, I can create whooshing sounds when I open my mouth. When I have it half-closed, the sound is the loudest. When I bite on my teeth, the sound is gone.

It's like I can hear the muscle activity of the jaw floating in my ears. Sounds like brown noise a bit. This is only when I'm wearing plugs.

Additionally, I can modulate one of my tones (the static hissing in my brain) by pushing the jaw forward, backward or by opening my mouth. The other tones do not react to that.

Does that mean anything? Do you have the same sensations going on?