walterwt <PICLIST@MITVMA.MIT.EDU> wrote:

> I'm VERY new to PICs and I don't know much about DTMF, so what I'm
> about to say may be very dumb or very enlightening because of my
> fresh perspective. If the signal is dependent on amplitude it should
> be possible to use a signal gate that would stay off if the
> amplitude is below a certain lower threshold and clip off the higher
> levels so you either have NO signal or always the same amplitude

Walter:

That'd be ok if you were only trying to determine the presence or
absence of DTMF ("Touch-Tone") tones, but in this case, we're
talking about ways to determine WHICH particular tones are being
received.

-Andy

=== Andrew Warren - fastfwd@ix.netcom.com                 ===
=== Fast Forward Engineering - Vista, California          ===
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