Hi all,
 
I recorded a guitarist that had some amp hum (probably a ground loop). Most of his stuff has distortion so it's not noticeable, but he has some parts he plays cleen and more quietly and I would like to remove the hum. I looked in my plugin arsenal and it doesn't appear that I have any noise reduction plugins.
 
Any suggestions? Is there another way to do this, or is there a plug-in I should consider?
 
thanks!
 

hum is 60 cycles.
 
try nuking that with a para eq, high bell, big reduction
 
 
i know there are plugs around, that specialize in that kind of cleanup....
 
chances are you could highpass from 70 down, and not miss much, maybe even clean up that guitar part in the mix better.

Thanks bats - I'll give it a shot tonight!

when i said 'high bell', i meant narrow Q.
 
just nuke it, all the way down.
 

That's what I suspected. Probably best to use a Linear Phase EQ then...

speaking of LPeq, Waves has a plug called 'X-Hum'
 
 
i like the waves stuff
 
there are just a handful of plugs i use constantly, 
linear phase eq is one of them.

Audacity has a noise reduction function.  You select a small area that contains just the noise you want to remove and audacity removes it from the entire track.
 
You could pre-process the guitar track with it.
 
 
Bare in mind when reducing mains hum with a filter that the fundamental (50/60hz) is not generally what you hear. It's the distorted noise/buzz being modulated by the 50/60hz hum.

sounds like that plug is the deali-o for this issue.
 
true, hums from guitar amps usually aren't pure,
and it depends on where you are, as to what that freq is.
60 cycle is typical in the states.

Sonitus EQ has a 60Hz hum reducing preset. An FFT noise reduction tool might produce a better result. This is the type of tool described in Audacity. Another free one is the 32bit version of ReaFir part of ReaPlugs. This one looks interesting but I have not tried it. So does this from the same site, specifically designed for hum removal. For fee an editor such as SoureForge has an FFT noise reduction tool and some of the iZotope RX tools. Then there is the full version of iZotope RX which provides a more comprehensive set of tools.

I've never been happy with the results when using filters to kill power line hum... it affects the signal and it just never sounds quite right to me. Seems unlikely, since one is attenuating an octave or so where the guitar has little or no energy, but the result always sounds odd to me.

My first choice, if I weren't such a cheapskate, would be Izotope RX, although there are some really good noise reduction tools out there now, some of which probably do as good a job. Actually, my first choice would be CEDAR, but that's not happening!

However, I am cheap, and I already have the NR plugin from Sony/Sound Forge - and it works really well for this sort of task. So that's what I use<G>!
 
I did demo Redunoise - the noise reduction plug-in from Voxengo, and I was really happy with the results. You might give that a spin.
 
Good luck!