[linux-audio-user] Re: Removing AC hum after the fact.

[Thomas Vecchione]

> 
> In effect analyzing the tool would look at the hum and create a filter
> that matches it exactly. I guess there's a word for that? 

Yep noise reduction;)  In this case Hum/Buzz Removal.

I havent found a good tool for it in Linux yet myself, though you can 
give audacity's noise reduction a shot, I tend to have bad luck with it 
as it removes to much IMO.

There are VSTs that will do this if that is an option for you, or other 
programs as well, though not nessecarily on Linux(Audition on Windows 
has a decent noise reduction for example and is less exxpensive than 
many VSTs for that purpose)

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