[ddots-l] Re: Frequencies Of Telephone Tones

  • From: Chris Smart <csmart8@xxxxxxxxx>
  • To: ddots-l@xxxxxxxxxxxxx
  • Date: Thu, 29 Sep 2011 23:57:05 -0400

Additionally, that article also gives frequency pairs and notice that the tones are pure sine waves. So, any simple synthesizer that can create a pair of sine waves can produce your tones for you.




ok now look up what dtmf means. :)
http://en.wikipedia.org/wiki/Dual-tone_multi-frequency_signaling


At 11:33 PM 9/29/2011, you wrote:
I wonder if that DTMF tone generator can generate telephone tones as well.

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