GUI, change FFT to display post-filtering

edited August 2016 in OpenBCI_GUI
Hi,
Looking at GUI code, it seems that the displayed FFT is the RAW one (i.e. that of the raw received data, e.g. BEFORE filtering).
How could I change the code so that post-filtering data is FFT'ed and displayed.
Pointers to code / code snippets would be appreciated.

Thx,
David
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