How can I remove the peaks in the top channel shown in the image? They are noises. This image is from audacity
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Which Operating System? Which software are you using?– Ƭᴇcʜιᴇ007Apr 28, 2011 at 17:08
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@techie007: edited the question– SivaApr 28, 2011 at 17:10
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3 Answers
Have you tried Audacity's Noise Removal feature(s)?
This may be more of a 'click' than a 'noise' (looks like it), so perhaps you'll have better luck with the Audacity "Click Removal" features?
Example of what's on the page:
Sometimes an even better result can be obtained by zooming in (CTRL + 1) to near sample level and either silencing the click (Edit > Silence), or using the Draw Tool to smooth out the contours of the samples and so attenuate the click.
answered Apr 28, 2011 at 17:14
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@Siva - I added the wiki page for the Click Removal suggestions/features. Apr 28, 2011 at 17:32
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1it is a huge file 10 hours, so will it be practical to use this feature first of all ?– SivaApr 28, 2011 at 18:16
Truncating peaks like that can be done using the Limiter (Effect > Limiter).
You probably want to use a "Hard Limit", as only to affect the peaks. Also, you can of course use it multiple times in combination with Effect > Normalize to shrink those peaks while scaling up the remainder of the recording to cover the full volume range.
In case you haven't tried them yet, Effect > Leveller and Effect > Click Removal in Audacity might work here.
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