Weird Hum/Buzz in Audio

Anthony Agius · November 25th, 2011, 08:55 PM

I recorded a conference session regarding RF engineering/hacking and due to some of the gear they were running for a demo, there's a weird buzzing in the resulting audio my camera captured.

I've uploaded a sample here: Dropbox - robert_output_sample.wav - Simplify your life (.WAV approx 3mb) and I'm not sure how to remove it without impacting sound quality. Anyone have any clues as to how I can remove it? (I'm using Adobe Premiere CS5.5 to edit). I've tried using a few audio effects on the audio track, but don't really know what I'm doing and haven't had any luck :(

Kawika Ohumukini · November 25th, 2011, 09:25 PM

EDIT: I forgot to mention, this is in Adobe Audition CS5.5. I assumed you had one of Adobes Suites.

Have you tried capturing a noise print and applying Noise Reduction (process)? I gave it a quick go on your clip and had good results.

Find a gap where there's no voice over, highlight it, click Effects -> Noise Reduction / Restoration -> Capture Noise Print. Deselect all (Edit -> Select -> Deselect All). Apply the noise reduction (Effects -> Noise Reduction / Restoration -> Noise Reduction (process). Click Apply in the window. Just go with the defaults and see how you like it. After that it's playing with the settings.

For instance, in the sample you uploaded there's a section at the 2.4 through 2.7 second mark that worked great in my quick test.

GL

Anthony Agius · November 26th, 2011, 12:27 AM

Wow, that worked pretty damn well. Thanks for that mate :)

November 25th, 2011, 08:55 PM	#1
Anthony Agius New Boot Join Date: Aug 2011 Location: Melbourne, Australia Posts: 12	Weird Hum/Buzz in Audio - How to Remove? I recorded a conference session regarding RF engineering/hacking and due to some of the gear they were running for a demo, there's a weird buzzing in the resulting audio my camera captured. I've uploaded a sample here: Dropbox - robert_output_sample.wav - Simplify your life (.WAV approx 3mb) and I'm not sure how to remove it without impacting sound quality. Anyone have any clues as to how I can remove it? (I'm using Adobe Premiere CS5.5 to edit). I've tried using a few audio effects on the audio track, but don't really know what I'm doing and haven't had any luck :(

November 25th, 2011, 09:25 PM	#2
Kawika Ohumukini Regular Crew Join Date: Oct 2011 Location: San Diego, CA Posts: 185	Re: Weird Hum/Buzz in Audio - How to Remove? EDIT: I forgot to mention, this is in Adobe Audition CS5.5. I assumed you had one of Adobes Suites. Have you tried capturing a noise print and applying Noise Reduction (process)? I gave it a quick go on your clip and had good results. Find a gap where there's no voice over, highlight it, click Effects -> Noise Reduction / Restoration -> Capture Noise Print. Deselect all (Edit -> Select -> Deselect All). Apply the noise reduction (Effects -> Noise Reduction / Restoration -> Noise Reduction (process). Click Apply in the window. Just go with the defaults and see how you like it. After that it's playing with the settings. For instance, in the sample you uploaded there's a section at the 2.4 through 2.7 second mark that worked great in my quick test. GL Last edited by Kawika Ohumukini; November 25th, 2011 at 11:04 PM.

November 26th, 2011, 12:27 AM	#3
Anthony Agius New Boot Join Date: Aug 2011 Location: Melbourne, Australia Posts: 12	Re: Weird Hum/Buzz in Audio - How to Remove? Wow, that worked pretty damn well. Thanks for that mate :)