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Gear / Technical Help => Post-Processing, Computer / Streaming / Internet Devices & Related Activity => Topic started by: vanark on May 26, 2009, 11:30:44 PM
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I received a recording of an acoustic string trio with a little harmonica, kazoo, jawbone of an ass and plain old stompin thrown in. The recording was recorded with peaks only at about -15db. Even without bringing the levels up, the hiss was very noticeable. Bringing the levels up 12 db to -3.0 peak brought all the hiss with it. Using the Noise Removal tool, I found a pretty clean noise sample and went at it. Listenable now, I think. Comments?
Audacity v1.3.6 beta
sample_hiss.flac
http://www.sendspace.com/file/k104uv (http://www.sendspace.com/file/k104uv)
sample_dehiss.flac
http://www.sendspace.com/file/i41dpu (http://www.sendspace.com/file/i41dpu)
edit: new SS links.
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Not sure if it's just me, but attempting to download via SS gives an error: The download link has been updated (error: #10).
You may now download the file. I try again, and the same error repeats.
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Thanks for the heads up, Brian. I deleted the old links and created new ones. I tested them and they work for me now.
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Another option for hiss removal is to find the approximate frequency of the hiss using the "Plot Spectrum" option. There's a tool under "Effect" (possibly vocal removal) that will allow you to specify a frequency range for removal. I've found this to be extremely useful at removing both hiss and buzz without any drastic effect to the rest of the recording.
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I think the Noise removal did an adequate job in this case. Anyone have any thoughts the sound of the samples?
I think because I was able to find a 2 second sample of almost 100% hiss, the utility worked better than most have experienced.