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Gear / Technical Help => Post-Processing, Computer / Streaming / Internet Devices & Related Activity => Topic started by: nolamule on April 14, 2016, 10:46:08 PM

Title: Audacity clip or click removal
Post by: nolamule on April 14, 2016, 10:46:08 PM
I have a track that has a single point of clipping or clicking. Can it be removed using Audacity? See below photo.
Title: Re: Audacity clip or click removal
Post by: capnhook on April 15, 2016, 07:07:05 AM
The "pencil" cursor is your friend.
Title: Re: Audacity clip or click removal
Post by: nolamule on April 15, 2016, 09:19:09 AM
Thanks I will check it out! I tried the ClipFix tool last night and it did nothing.  :facepalm:
Title: Re: Audacity clip or click removal
Post by: capnhook on April 15, 2016, 02:40:15 PM
Great

Just reposition these over bits.....pull the over bits down with the pencil cursor, and you will have fixed it
Title: Re: Audacity clip or click removal
Post by: nolamule on April 15, 2016, 03:31:32 PM
Great

Just reposition these over bits.....pull the over bits down with the pencil cursor, and you will have fixed it

bingo! thank you sir!
Title: Re: Audacity clip or click removal
Post by: voltronic on April 15, 2016, 06:45:33 PM
capnhook gave you the right advice for just one of these, but if you ever have a bunch you need to correct at once:
http://taperssection.com/index.php?topic=163137.0 (http://taperssection.com/index.php?topic=163137.0)
Title: Re: Audacity clip or click removal
Post by: nolamule on April 17, 2016, 10:46:41 PM
capnhook gave you the right advice for just one of these, but if you ever have a bunch you need to correct at once:
http://taperssection.com/index.php?topic=163137.0 (http://taperssection.com/index.php?topic=163137.0)

Bookmarked this, thanks!!
Title: Re: Audacity clip or click removal
Post by: firemt66 on May 25, 2016, 04:15:03 PM
Would this also work with a loud whistler right behind me?
Title: Re: Audacity clip or click removal
Post by: voltronic on May 25, 2016, 04:54:32 PM
Would this also work with a loud whistler right behind me?

For that, you want to use Hard Limiter. Highlight the whistling section only, and then Effect > Hard Limiter. What I've found works well for this is setting the Residue Level to 0.7, and then experiment with the limiting level.  Try -12, then undo/redo until it's limiting the offending noise to around the level of the music but not so much that you're reducing the level of the music itself. 

BTW, the Residue Level setting is to avoid simply chopping/clipping the waveform, which is what you'd get if left at default.  There's more details in the online manual if you're curious.
Title: Re: Audacity clip or click removal
Post by: firemt66 on May 25, 2016, 05:52:22 PM
Thanks fir the tip..while looking at the wav in audacity, i didnt see a spike with his whistling cause most of the time its during the loud applause of the concert goers..would hard limiter work with this?
Title: Re: Audacity clip or click removal
Post by: voltronic on May 25, 2016, 09:36:34 PM
Thanks fir the tip..while looking at the wav in audacity, i didnt see a spike with his whistling cause most of the time its during the loud applause of the concert goers..would hard limiter work with this?

Yes, but you're then limiting the surrounding applause peaks as well.  If that's what you do, make sure you grab the whole section where there is applause, otherwise it will sound strange to just limit some of it.  Or, do the Click Removal as described in the post I linked on that section to knock down the applause peaks, and then go back with the hard limiter to get the whistling.