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Gear / Technical Help => Post-Processing, Computer / Streaming / Internet Devices & Related Activity => Topic started by: danlynch on October 08, 2009, 01:31:37 AM

Title: Soundforge / Post Production Help: Removing Electric Guitar HUM from a Recording
Post by: danlynch on October 08, 2009, 01:31:37 AM

I'm sure we've all heard this stage "hum" in one form or another, coming from a guitar that has some sort of loose wiring. 
Anyway, I recorded a really sweet sbd/aud matrix of Lou Barlow at the Mercury Lounge last night.  The band section of the show is pretty nice, and that "hum" is very minor.  However, when Lou decided to play about an hour of solo stuff with just him singing and his "humming" electric guitar, the sound is really quite distracting.

Is there a way in Soundforge to isolate and remove/reduce this annoying "hum".

I can post samples if requested.

Title: Re: Soundforge / Post Production Help: Removing Electric Guitar HUM from a Recording
Post by: bugg100 on October 08, 2009, 06:06:44 AM

It's been years, (sony d5 - god love analog cassete) but the way it used to work was to isolate the the noise ONLY for as long a section as possible and use this with the NR plugin to make a "noise print" to be removed.

Ideally this would not have anything else there, uniform amp hum only.

In SF9 this is under tools>noise reduction...

Reaper does this with a dynamics plugin called ReaFir, good example in the help file,, which is a seperate download.

Good luck!
Joe

Title: Re: Soundforge / Post Production Help: Removing Electric Guitar HUM from a Recording
Post by: Brian Skalinder on October 08, 2009, 10:32:12 AM

You might also try a notch filter.

Title: Re: Soundforge / Post Production Help: Removing Electric Guitar HUM from a Recording
Post by: itook2much on October 08, 2009, 08:49:51 PM

Quote from: Brian Skalinder on October 08, 2009, 10:32:12 AM

You might also try a notch filter.

Agreed.  It's likely a grounding issue, and what you're hearing is the 60Hz hum.  Notching that out may take care of it.

Title: Re: Soundforge / Post Production Help: Removing Electric Guitar HUM from a Recor
Post by: Əkoostikal on October 08, 2009, 09:28:02 PM

if you have or can get access to Izotope RX it should be able to fix it no problem.

Title: Re: Soundforge / Post Production Help: Removing Electric Guitar HUM from a Recording
Post by: danlynch on October 08, 2009, 10:31:58 PM

I downloaded a 30-day version of IZotope RX and ran the "Hum" correction.  The result was very little improvement.  It sort of just made everything sound duller without actually removing any of the annoying hum/buzz.

Title: Re: Soundforge / Post Production Help: Removing Electric Guitar HUM from a Recording
Post by: Fatah Ruark (aka MIKE B) on October 08, 2009, 11:19:24 PM

If you can get a hold of Waves X-Hum, that has worked very well for me. It has a 60Hz preset that works like a charm (if that is your problem).

It is available in either the Diamond or Mercury bundles.

Title: Re: Soundforge / Post Production Help: Removing Electric Guitar HUM from a Recording
Post by: capnhook on October 17, 2009, 10:40:45 AM

You might also try a notch filter.  :)

Title: Re: Soundforge / Post Production Help: Removing Electric Guitar HUM from a Recording
Post by: kirk97132 on October 17, 2009, 11:31:23 AM

Sometimes it is the pick ups on a guitar that pickup RFI and has nothing to do with the guitar itself.  Especially if it comes and goes depending on where the guitarist is.  Mostly happens in bar type settings.  From what I remember about Izotope noise reduction is that you need to try and get a sample of the noise only in order to set the parameters.  It's been awhile since I used it.  But once dialed i produces great results.