DTMF generation with NI SPEEDY 33

[killakiz]

I have compiled a block diagram for DTMF generation, but when running the VI on the SPEEDY 33 DSP the tones sound incorrect. I am looking for some advice on what to change in order to make the tones sound correct. My VI is attached. 

Thank you

-kiz.

[RavensFan]

In what way don't they sound correct?  Too high pitched, too low pitched, crackly, too quiet, too loud, ......?

[killakiz]

Too high pitch? That may be the best way to describe the generated tone. 

[killakiz]

I have attached a wav illustrating my generated tones from the SPEEDY 33.

Thank you.

-kiz

[George_P_Burdell · Accepted solution]

Kiz-

Does your SPEEDY 33 work correctly when running the “Sine Generator” example from the Example Finder (only available in LabVIEW 8.6 or below)?

Does your code work correctly with a different SPEEDY 33?

[killakiz]

Thanks, after reviewing the sine generator example I noticed that the Fs on the Analog Output was set way too high.

Thank you.

-kiz 

Message Edited by killakiz on 11-25-2009 08:43 PM