Need help with noise removal

Help for Audacity on Windows.
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kozikowski
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Re: Need help with noise removal

Post by kozikowski » Wed Aug 06, 2014 3:04 am

Are you sitting down?

I couldn't get any of the normal noise removal tools to work right, so I deleted them one at a time by hand.

Assume the first test clip is good enough, the one with the little ting remaining here and there.

Import the show onto Audacity.

Zoom into the first ting and pop sound. I only ever use three zoom tools: Zoom into selection, Control-E; Zoom out to the full show, Control-F; and Zoom out a little bit, Control-3. There are many other tools.

Zoom into the first Ting and Pop, drag select it and mute it with Control-L. (first illustration, after and before) Do a couple of experiments before you go tearing off down the whole show. You'll get a feel for what they look like and how much surgery you can get away with.

When you get one deletion to work, Shift-ScrollWheel sideways to the next one. Repeat.

The second, cleaner test clip is an exotic application of Noise Removal to clean up after you delete the tings by hand. Noise Removal doesn't like this problem because the noises are so sharp and short. It's a process. Let me know.

If you have to export the show as MP3, do it at the highest quality you can. Editing MP3 and creating a new MP3 causes sound damage.

Koz
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kozikowski
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Posts: 68902
Joined: Thu Aug 02, 2007 5:57 pm
Operating System: macOS 10.13 High Sierra

Re: Need help with noise removal

Post by kozikowski » Wed Aug 06, 2014 3:11 am

One other thing. Do Not under any circumstances save the new, corrected show with the same filename as the old. That process is not foolproof and if anything bad happens you have no show. Full Stop.

You get to apply, as the video forum joke goes, the "Reshoot Filter."

If you're completely wedded to the specific filename, save the original work onto a thumbdrive or other safe location, or make a safety copy of the original work with a new name.

Koz

kozikowski
Forum Staff
Posts: 68902
Joined: Thu Aug 02, 2007 5:57 pm
Operating System: macOS 10.13 High Sierra

Re: Need help with noise removal

Post by kozikowski » Wed Aug 06, 2014 3:12 am

Also remember AUP is not a sound file....

Koz

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