pilot signal w/ guard bands removal

I have a stereo recording from an FM radio broadcast that has a 19khz pilot signal. it also has two guard bands at approximately 17.817khz and 20.144khz. I was thinking of using notch filtering to get rid of the noise, but I’m not sure, it seems like a lot to remove using a notch filter. any suggestions?
pilot signal 2.png
pilot signal.png

FM sound only goes to 15 KHz, so you can safely strip off everything above that. Effect > Low Pass Filter. A real stereo FM receiver would be doing that for you. You are looking at the pilot and 38KHz stereo separation signal leakage.


For a sharp lowpass, you can simply resample the track to e.g. 32000 Hz.