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ChrisVeigl / BrainBay

Open Source Biofeedback Software
http://brainbay.lo-res.org
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best practice: get power of a bandwidth (smoothed) without display element #22

Closed ElliotMebane closed 3 years ago

ElliotMebane commented 5 years ago

I want to use a threshold with the power of a section of the bandwidth. I'm using Magnitude to isolate the SMR bandwidth then FFT to output Power. This requires the use of a FFT window that I don't want to display.

Is there another way to access the power of a bandwidth (smoothed over N time)?

ChrisVeigl commented 5 years ago

I'm not sure if I understand correctly what you want to do ... The magnitude element already calculates the power in passband and provides it at the output port. see also demo design OtherDemos/magnitude_test.con

the fft element can also be used to calculate power in the selected freqeuncy range - alternatively to the magnitude element.

adding an option for displaying/hiding the fft graph is a good idea...