Hi Dick,

The current version of WinSDR (http://www.seismicnet.com/winsdr/betarelease.html) 
does an FFT on the incoming data from the A/D board to detect teleseismic events. It 
seems to work OK most of the time.

Regards,
Larry Cochrane
Redwood City, PSN

Richard Webb wrote:
> Hi,
> 
> I was wondering if it is possible to do FFTs on the fly as a means of 
> differentiating earthquakes from environmental noise (cars, explosions, 
> wind, etc.).  From what I have read, their FFT signatures for these 
> items are quite different.  Can it be done with WINSDR or other software 
> that can be used in conjunction with WINSDR.
> 
> Dick
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