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Topic:
Audacity - Hiss Removal
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vanark
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Audacity - Hiss Removal
«
on:
May 26, 2009, 11:30:44 PM »
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
sample_dehiss.flac
http://www.sendspace.com/file/i41dpu
edit: new SS links.
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Last Edit: May 26, 2009, 11:50:24 PM by vanark
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Brian Skalinder
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Re: Audacity - Hiss Removal
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Reply #1 on:
May 26, 2009, 11:36:03 PM »
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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vanark
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Re: Audacity - Hiss Removal
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Reply #2 on:
May 26, 2009, 11:50:59 PM »
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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Re: Audacity - Hiss Removal
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Reply #3 on:
May 27, 2009, 09:44:14 AM »
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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vanark
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Re: Audacity - Hiss Removal
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Reply #4 on:
May 27, 2009, 09:54:38 AM »
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.
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) please send an e-mail to us admins at LMA(AT)archive(DOT)org or post in the LMA thread here and we'll get on it.
Link to LMA Recordings
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Mics: Microtech Gefell M21 (with Nbob actives) | Church Audio CA-11 (cards) (with CA UBB)
Pres: babynbox
Recorders: Tascam DR-60D | Tascam DR-40 | Sony PCM-A10 | Edirol R-4
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Topic:
Audacity - Hiss Removal