Re: DFT taps for DTMF


"Roger" <irwin@xxxxxx> wrote in message
news:1149892289.642496.260650@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
What size of DFT whould be appropriate for DTMF?

I know the bands of the tones are quite large to allow generation
without crystals, which suggests to me that you should not be too
critical.


There's a very clever DTMF DFT at http://members.cox.net/berniekm/.
Luhan posts here so maybe could add background.
john


.

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