ok, so I've thinking about sound, the mind, and dreams....

when you imagine a sound in your head, what is it exactly that you are imagining? Sound waves vibrate the different parts in your ear and those vibrations are converted to singals that get sent to your brain that somehow become your perception of sound. What exactly is that perception in your brain??? When I imagine ppl talking, or some strange musical timbre, I think, what is this sound, is it possible to extract it from my brain and represent it has a soundwave in kind of a reverse proccess?

So this also leads to the questions, when we dream with sound, what are we actually hearing??

This also applies to other sensations such as sight, smell, taste and touch....(the last three are more difficult to imagine imo, and maybe aren't as interesting to explore as the imagination of the sensations of sound and visuals)