Originally posted by �§n�­p�¨�½:
if thats the case, and if the higher pitched noises are the ones helping him out. Wouldnt he be stranded like a fish out of water once he outgrows the teen years, and loses his ability to hear it? That is, if only the certain pitched tones are the ones hes using. Otherwise, no difference..



Quite possibly yes. The older you get, the less you can hear the higher pitched frequencies. It has to do with sometype of hairlike cilia in your ear canal. If you use the link I provided in my post above there is a soundbite that is specifically tuned for young ears. It's explained in the Wikipedia entry.

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