Il 06-Mar-98, Jacques Audette scrisse:

> I'm usually silent but since i already tought of the dtmf idea a while
> ago for another project and noticed it could not work, i had to say it.

> The only problem with dtmf is the speed. the detectors cannot lock fast
> enough to get a normal bandwidth (usually a couple of ms). A solution
> would be High Speed DTMF (I heard of it but never looked it up).

I tought to use dtmf only for driving an r/c submarine,
surely not for other purposes... i could enlarge the tone
duration... anyway i should still evaluate the attenuation
of a sound in the water... if someone knows about
HSDTMF.. would be better :-)


--

   - *Alex* -

  http://freepage.logicom.it/azummo/