blobby113

Or you could just use "dehum" in Nero Wave Editor! I haven't tried it, but everything else in Nero works fine.

I removed the 60Hz by blocking the sound into small chunks and removing the sinusoidal component by regression. The problem is that the 60Hz hum is getting amplified, so needs to be filtered locally in time. I'm attaching the corrected sound, which doesn't have a 60Hz component. If you look at the spectrogram, you'll also see that frequencies very near 60Hz have also been removed, but this can't be helped. This technique won't touch any harmonics of the 60Hz, but these can also be removed in a similar fashion. Needless to say, the technique is best used offline (i.e. postprocessing). Barry[attachmentid=1507] line_noise_mod.wav