Need help with Adobe Audition at DVinfo.net

Jake McGlothlin · November 12th, 2008, 03:03 PM

I have a problem with some footage I shot with my Canon XH-A1. I had the audio gains turned up too high, so the onboard mic picked up a good deal of camera hum. The hum is persistent and very annoying in the audio track.

I can't reshoot the footage, so my options are limited. Is there anyway in Audition that I can isolate and eliminate the camera hum?

Frank Hardie · November 12th, 2008, 03:31 PM

If you can find a section of audio that is just the hum, you can capture this to use as a noise profile, then use Auditions noise reduction.

Jake McGlothlin · November 12th, 2008, 04:05 PM

I thought about that and tried to do it, but can not isolate the hum. Is there any other filter or effect that might help?

Vito DeFilippo · November 12th, 2008, 08:49 PM

Quote:

Originally Posted by Jake McGlothlin

I thought about that and tried to do it, but can not isolate the hum. Is there any other filter or effect that might help?

Are you sure you are doing it correctly? It usually works very well.

You view the waveform and select a small portion (a second or so) that consists only of the noise you want to remove. Then you open the noise reduction effect and choose "get noise profile" (or something like that). Don't select the whole file first. That defeats the purpose.

After you have the profile, select the whole file. Mess with the options until you get a result you like.

Abe Dolinger · November 13th, 2008, 12:14 AM

Since it's your camera, you can always go to a quiet room and duplicate the hum without the other noise on the track, and then use that as your noise profile.

Jake McGlothlin · November 14th, 2008, 09:49 PM

Abe, I can't believe I didn't think about that before! That should work perfectly. Thanks for the tip.

November 12th, 2008, 03:03 PM	#1
Jake McGlothlin Regular Crew Join Date: Aug 2008 Location: Bozeman, Montana Posts: 55	Need help with Adobe Audition I have a problem with some footage I shot with my Canon XH-A1. I had the audio gains turned up too high, so the onboard mic picked up a good deal of camera hum. The hum is persistent and very annoying in the audio track. I can't reshoot the footage, so my options are limited. Is there anyway in Audition that I can isolate and eliminate the camera hum? __________________ “If people don’t occasionally walk away from you shaking their heads, you’re probably doing something wrong.” -John Gierach

November 12th, 2008, 04:05 PM	#3
Jake McGlothlin Regular Crew Join Date: Aug 2008 Location: Bozeman, Montana Posts: 55	I thought about that and tried to do it, but can not isolate the hum. Is there any other filter or effect that might help? __________________ “If people don’t occasionally walk away from you shaking their heads, you’re probably doing something wrong.” -John Gierach

November 14th, 2008, 09:49 PM	#6
Jake McGlothlin Regular Crew Join Date: Aug 2008 Location: Bozeman, Montana Posts: 55	Abe, I can't believe I didn't think about that before! That should work perfectly. Thanks for the tip. __________________ “If people don’t occasionally walk away from you shaking their heads, you’re probably doing something wrong.” -John Gierach

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November 12th, 2008, 03:31 PM	#2
Frank Hardie New Boot Join Date: Feb 2007 Location: Brisbane, Australia Posts: 18	If you can find a section of audio that is just the hum, you can capture this to use as a noise profile, then use Auditions noise reduction.

November 13th, 2008, 12:14 AM	#5
Abe Dolinger Regular Crew Join Date: Apr 2006 Location: Brooklyn, NY Posts: 111	Since it's your camera, you can always go to a quiet room and duplicate the hum without the other noise on the track, and then use that as your noise profile.