I just came across a great quick tutorial from Total Composure on YouTube. By using ReaFir in subtract mode you can remove any constant hiss and noise from your recordings. It may not work as well as iZotope RX2, but it’s an impressive free option.
Video: Removing noise with ReaFir
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10 responses to “Video: Removing noise with ReaFir”
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RT @reaperblog: New Post: Video: Removing noise with ReaFir – http://t.co/X9LZe17h
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RT @reaperblog: New Post: Video: Removing noise with ReaFir – http://t.co/X9LZe17h
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That’s a great tut. Didn’t know this function so far. I’m just gonna try it ;o)
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This application works pretty well, and closely mimics the Sound Forge ‘Noise Reduction’ plug-In. Having used both for a while now, I’ve found that by lowering the amount of ‘noise reduction’, re-sampling the file and repeating the procedure a few times results in a more transparently-processed final file. Thanks for the tutorial – well done.
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@Rob I didn’t have much luck with it myself compared with iZotope RX2 (basically magic). But you got me thinking about it again. Instead of resampling why not a few instances of ReaFir in the chain?
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I’ll suggest that a few instances in the chain ‘repeats’ the same noise sample removal a number of times – whereas multiple re-samplings may ‘catch’ alternate problems as the signal is ‘cleaned’ – I think too, used in moderation, my method is less likely to introduce objectionable anomalies onto the original sounds. And yes, iZotope is better, but it’s not as ‘cost friendly’ as Reaper – which is, BTW, a product I highly recommend to all of my students.
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ReaFIR #2 should be using the noise-reduced output of ReaFIR #2, rather than using the same noise capture for both.
I try to avoid destructive editing as much as possible and I think that might be a free way around it.
I’ll have to try it.
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Awesome, thanks. Used this to take out some extra noise in isolating parts that were bled together in recording. Thank you.
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The manual shows a checkbox for “Reduce artifacts (less effective)”. I don’t have that on my copy and I don’t see it on the tutorial. Is the manual out of date?
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Just checked on my system and I think you may have an older version. It’s in 4.77.
Strangely, I don’t see it in the latest user guide on 283.
I think I would keep it on, have a little less noise reduction in order to not distort the original sound.
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