this post was submitted on 12 Aug 2024
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If you're not yet using reaper I highly advise you to try it out. I run it on debian and it works extremely well. For noise reduction you can use reafir which is one of the built in plugins of reaper. Here is a link with basic tutorial on how to do noise reduction with it.
https://www.homebrewaudio.com/9603/reafir-madness-hidden-noise-reduction-tool-in-reaper/
Seconding reafir, or really any audio silencing plugin.
Record silence for 5 - 8 seconds, turn on FX, set to subtract and then playback the silence with the checkbox.
You'll see the frequency range it takes up. In some cases this can affect your source audio, for example if the clicking sound is in the same range as a higher pitched humans voice, they may become warbled or inaudible.
This can be done to take out car whooshing/air to some extent, and general background hums from line input or gain noise or fans.