Touchscreen using sound input?

Posted by ricardowong on Stack Overflow See other posts from Stack Overflow or by ricardowong
Published on 2010-04-29T07:48:33Z Indexed on 2010/04/29 7:57 UTC
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touchscreen

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sound

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mouse

Hi, i don't really know if it is actually possible, but i believe that it can be made. How possible is it to make a program that recognizes different sound bouncing from the screen and turn it into a position that will obviously be later fed to the mouse.

I know that it sounds kind of dumb, but lately i've been noticing that a very dull, strong sound is made when touching the screen, and that sound varies when doing so at different positions. Probably the microphone "hears" differently because the screen acts as a drum with the casing. Anyways, what do you think, anyone has any experience programming with sound?

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