I have a reel to reel tape with some background hum. (120Hz)
Ia there a function in ACL 15 that will allow me to specify a notch filter to remove this?
I see a preset where there is 'mains' 50Hz (sounds European) but nothing for 60Hz or 120Hz
pgmer6809
Hi,
Have you tried using spectral cleaning to take a sample of the frequency you want to eliminate, identify it as "noise" and use that tool to get rid of it? Spectral cleaning is very frequency specific and one you identify the source of the problem and set by how much you want to reduce the noise, you should be able to get rid of virtually all of it. You may need to do it once for 60 hz and once again for 120 hz, if you are sure that those are the frequencies you want to get rid of.
Otherwise, use the free Audacity product and apply the notch filter for both of those frequencies.
Good Luck,
George
Good suggestion George.
I am somewhat nervous about doing this as the music in question is a piano solo, and there are specific notes on the piano that are not far from 60, 120, 180, 240, 300 all of which show up in the Spectral Cleaning display as peaks.
I may not have an answer in this case, but yours is a very good suggestion for the future.
Greg