Well that certainly did it. Thank you very much for your time in
looking at this so quickly. This is definitely a point that I missed.
It is interesting that LabVIEW 6.1 handled this error "okay", but I am
happy to know the correct way to build the input waveform.
Thanks again.
Could you please post your actual benchmark VI with your input test
data saved as default (or optionally embedded as constants on the
block diagram) and we will of course take a closer look at the issues.
Thank you
>From the input spectrum data (magnitude and phase), I can tell the
complex input data to the inverse FFT is not "DFT Symmetric". In order
to compute correct Real Inverse FFT, the input complex vector must be
even symmetric on the real part and odd symetric on the imaginary part
( it is in the "DFT