<br><br><div class="gmail_quote">2009/6/29 Dotan Cohen <span dir="ltr"><<a href="mailto:dotancohen@gmail.com">dotancohen@gmail.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="im">> it is a motion sensor if you put the optical mouse vertical and use dev dsp<br>
> so if anybody pass throught you can see a sound<br>
><br>
<br>
</div>Why do that with a mouse? Do it with a webcam, pipe /dev/video to<br>
/dev/dsp (untested). It it always makes sound, then have it take a<br>
photo every X seconds then pipe the diff of the photo binaries to<br>
/dev/dsp.<br>
<br>
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Dotan Cohen<br>
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</div></div></blockquote></div><br>why not?<br>thanks<br>MATTIA<br>