dtmf

[44451557]

Hello

I want to detect the number through the  signal that a

DTMF generator device (like a phone) produces.
I can input the signal data to my vi program by a pc_sound_card mic plug.

could you help me with a suitable signal table,

or any labview program designed for this purpose.

thank you for your advice.

[LV_Pro]

If you do a search for DTMF you will get a number of threads related to this topic. There is also LabVIEW example (Sim Phone.vi) in the LabVIEW examples for generating the tones that will give you the frequency pairs involved. Then it is a matter of analyzing your returned data to determine the frequencies and comparing those to a table of frequency pairs.

P.M.