Originally Posted by
Need
I wonder if the problem of your ear part could help solve the mic part. If someone could design a headphone that could pick up the vibration of your skull (or echo on your ear drum) when you talk, then only those sound that had a matching echo (with the proper delay) would be filtered and go thru.
I would be amazed if that worked as the sound is generated at multiple locations in your body. What arrives at a pickup on the back of your head will not be lined up
exactly the same as what a mic in front of you picks up. Also, the component that comes from the vocal cords would be louder relative to the component that comes from the lips.