Why your voice differs from inside to outside
I kinda knew that, but, anyway, it's nice to confirm one's suspicions.
(From here: http://www.popsci.com/scitech/article/2009-06/why-your-voice-sounds-different-recordings
)
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It sounds different because it is different. "When you speak, the
vocal folds in your throat vibrate, which causes your skin, skull and
oral cavities to also vibrate, and we perceive this as sound,"
explains Ben Hornsby, a professor of audiology at Vanderbilt
University. The vibrations mix with the sound waves traveling from
your mouth to your eardrum, giving your voice a quality — generally a
deeper, more dignified sound — that no one else hears.
Through a loudspeaker or recording device, you pick up sound only
through air conduction. "The sound we're used to hearing has a lower
frequency from the bone vibrations," Hornsby says. "We like that
because it sounds rich and full." Many people cringe at the playback
sound because our brain struggles to accept that this foreign voice is
our own.
