Scott Dattalo wrote:
>
> One of my favorite quotes is:
>
> "In theory there's not much difference between theory
> and practice, but in practice there is." -- WEB...
>
> More work is need to either make the algorithm more robust
> or to realize that it is not feasible. I'll give it another
> week.
> Timing decode will only measure very clean signals. For robust DTMF
decoding you need both frequency and energy information. Presense of
signal only will react to almost any spectral noise.

Walter Banks
http://www.bytecraft.com