Overlapping Windows

[tom]

I need to have overlapping time-data for an FFT based instrument. None
of the examples seem to cover
this. What is the best approach - do I read in more data than I need and
work on the buffer?

Regards

Tom

[Christopher Mitchell]

Not exactly sure what you are trying to do. If you want an FFT of a window sliding over time data the following webapage contains an example:

http://zone.ni.com/devzone/devzoneweb.nsf/opendoc?openagent&1BD6D3BDB8BD0F4F8625696D00463B63&cat=F64E0FD3F923510C862567F5007AA89C

NI also provides an advanced signal processing toolkit:

http://www.ni.com/analysis/joint_time.htm