We hear ourselves talk all day, but when we listen to recordings of our voices, it sounds really strange. Is that really me? Why does my voice sound like this?
"People are often surprised when they hear themselves on a recording," says Niels Schiller, professor from the University of Leiden. "Some even don't believe it is actually their own voice."
When you say something you perceive your own voice in two different forms. The first is external: through the air. Sound waves reach the outer ear, pass through the ear canal, hitting the ear drums. Amplified by the middle ear, the waves enter the inner ear, where it is processed and passed on to the brain. The second is internal: through vibrations inside your skull activated by your vocal cords. These will also set your ear drums vibrating. But because they are traveling through another medium other than air and are spread out, the pitch is lower, giving a false sense of bass.
So when we hear ourselves talk, it is a combination of these two sounds. That is why a recording of your own voice, the external sound is the sound that you hear, like everybody else. The pitch you hear on the recording will be higher because the inner sound is not recorded.
Research show people in general are more attracted to lower pitched voices. Possibly indicating strength and competence. Your genes determine how long your vocal cords are, long cords mean low voiced, short cords high. If you don't like your voice, there is nothing you can do about it, but you can tune it by practicing your vocal cords.