When you listen to a recording of your own voice it seems alien to you, because it does not include the sounds that were conducted through your skull to the ear.
Is it possible to recreate your "inner voice" by using a recording of the "outer voice"? Maybe by filtering/increase/decrease some frequencies of the original and combining both (as you still here your voice through air), maybe even adding a small delay if the propagation velocity is different? I would imagine manifacturers of bone-conducting headphones do the same in reverse to counter the distortion from the bone, but I cannot find any sources or even what the best keywords are (I'm not even sure this is the right stackexchange). Any information on how sound is affected by traveling through bone and how the human ear perceives it would be helpful.