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Noise Reduction
I recently purchased Sony Noise Reduction 2.0 and am trying to use it with Vegas to remove some microphone buzz on an interview, so far my attempts have been frustrating and unproductive.
Does anyone have any suggestions for a good way to go about it? I think I have mastered capturing the noise print, but aside from just adjusting some sliders and listening to my frustration over and over again, I am kind of lost.Is there a way to isolate a particular sound? Sould I try to make a noise print of just the buzz? And then try to eliminate it?
Help and thanks.
Damon
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4 Replies
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1st try to get a print of the NOISE only .. set FIT size to 1000 ..get a very very very tiny sample ( .35) nothing longer then 1/2 second … create a loop and listen to it – under GENERAL check the box Keep out residual to hear the NOISE only – from there move the sliders slightly and try to keep voice out of it – listen to it with keep out residual and then uncheck it to hear voice ( go back & forth between them after moving sliders also make a larger loop area that includes voice and noise) .. also set windowing FFT to 4000 (higher at times – again listen to difference of 128 vs. 4000 ) ..windowing overlap to 90 … release speed 90 … reduce noise approx 6-20 ( maybe 25) (it is better to use NR multiple times then to try to take out all the noise with just one instance of NR with reduce noise at 40 ) … noise bias ( start ) approx -10 to +5 =you have to listen …
if the buzz gets louder then softer -louder etc it will take TIME .. if buzz is same volume thru-out NR should get very close if you just capture the noise print of the buzz ..
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I am using Sony Noise Reduction to take out a very complicated waterfall sound as background noise.
Here’s the problem:
When I am using Noise Reduction anywhere in the track (even sampling a completely silent portion of the track to use as the ‘noise’) I get chirps and other artifacts at random places. Even if I loop the same segment, the chirps are at different places in the loop.No matter what settings I use, the chirps are present. Were it not for those artifacts, the waterfall noise reduction would be quite reasonable.
I’ve tried capturing large areas of noise and tiny tiny tiny ones – it doesn’t matter.
I’d be more than happy to provide an audio sample if anyone wants to try.
Thanks
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A word about my last post. I didn’t mention that I was using the trial version of Sound Forge 8.0 and a trial of the Noise Reduction plug-in.
Is it possible that the trial versions insert artifacts? The randomness of the chirps are making me wonder…
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The trial version of Noise Reduction adds noises every x seconds. To eliminate the trial chirps, you have to register (i.e. buy) it. That is the typical method of protecting audio effects so people can trial them.
Edward Troxel
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