Mona

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Mona got a reaction from attila in Using the spectrum analyzer on Raspberry Pi 4 April 4, 2023

Hi @attila,
That resolved the issue. Thank you for your help!
Mona
Mona reacted to attila in Using the spectrum analyzer on Raspberry Pi 4 April 4, 2023

Hi @Mona
The last argument should be a pointer, byref(to a c_double) or None nullptr if you are not interested in this.
rgdWindow = (c_double*nSamples)()
vBeta = c_double(1.0) # used only for Kaiser window
vNEBW = c_double() # noise equivalent bandwidth
dwf.FDwfSpectrumWindow(byref(rgdWindow), c_int(nSamples), DwfWindowFlatTop, vBeta, byref(vNEBW))
or
dwf.FDwfSpectrumWindow(byref(rgdWindow), c_int(nSamples), DwfWindowFlatTop, vBeta, None)