General discussion

Locked

Monitor DTMF Tones From Sound Card With

By cdungey ·
I need to monitor DTMF tones from my sound card.I will be injecting the tones via the aux in on the sound card..
Thanks.
Cliff

This conversation is currently closed to new comments.

5 total posts (Page 1 of 1)  
| Thread display: Collapse - | Expand +

All Comments

Collapse -

Monitor DTMF Tones From Sound Card With

by ats31 In reply to Monitor DTMF Tones From S ...

Now I have same problem. I use API functions such as waveInOpen(),waveInAddBuffer(),waveInStart() etc. See API Reference to learn how use it. But so you only save PCM signal. If you want to see Magnitude-frequence characteristic you must use Fast Fourier Transform. Now i try find realy working algorithm of FFT. But not for a while yet don't find it.

Collapse -

Monitor DTMF Tones From Sound Card With

by cdungey In reply to Monitor DTMF Tones From S ...

The question was auto-closed by TechRepublic

Collapse -

Monitor DTMF Tones From Sound Card With

by Cedric King In reply to Monitor DTMF Tones From S ...

API should be where you be heading.

Collapse -

Monitor DTMF Tones From Sound Card With

by cdungey In reply to Monitor DTMF Tones From S ...

The question was auto-closed by TechRepublic

Collapse -

Monitor DTMF Tones From Sound Card With

by cdungey In reply to Monitor DTMF Tones From S ...

This question was auto closed due to inactivity

Back to Web Development Forum
5 total posts (Page 1 of 1)  

Software Forums