Power Spectrum to waterfall plot (then save)

[morris]

I have been working on a spectrum analyzer vi for short sound recordings acquired by the sound card microphone.  I can get a power spectrum, and even save the fft data to a file, but what I would like to do is see a waterfall plot of the power spectrum as it evolves in time.

I've looked at the examples and tried many of them out, but I still can't seem to get the waterfall plots to work out right.  Any help would be greatly appreciated.

[altenbach]

Have you tried an intensity chart?

Of course for this to work properly, you need to acquire in a loop to get multiple traces.

(Also, I don't think you need to sort the frequency values, because they are already sorted. You should also use autoindexing at the loop boundary instead of building an array in the loop. See image))

Message Edited by altenbach on 09-24-2007 04:35 PM