DTMF Decoder
While working on the next version of WinRepeat,
It uses Murphy McCauley's FFTAudio code for Visual
Operation is very simple..Just hook audio to
Here is a screen shot.....
If it sounds like a program you would like to try, you can
Several people have emailed and asked for the source so
If you find it useful or have a suggestion you can send me
Thanks...Scott (KB5RYO)
Update!!
I wrote a simple DTMF decoder program that uses
the sound card and FFT to decode DTMF..
Basic 5. You can check out some of his other programs at
http://www.fullspectrum.com/deeth/
the the line in of the sound card, start the program. When a
correct pair of tones appear the number will apear in the text
box...As with all DSP software false numbers may apear...If too
many are apearing, try turning the input volume down...The peaks
of the dtmf tones should just reach the top of the display...
download it here...DTMF.ZIP
I have decided to put it on the web....Good luck...DTMF source
an EMAIL.
Johnny Booth sent the following mods to help stop false readings..
Put the follwing on the declrations..
Private Declare Sub Sleep Lib "kernel32" (ByVal dwMillisonds as Long)
Then add Sleep(40) after the DoEvents routine...
Hope this helps and good luck with you projects....
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