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

[Jan Depner]

On Mon, 2006-05-29 at 19:16 +0200, Alex Polite wrote:
> Thanks for all the input.
> 
> I did some experimentation with jamin. Cutting of everything below 300
> Hz sure helped alot. But the  harmonics went right through the speech
> spectrum so canceling them all out pretty much meant canceling the
> speech out as well.
> 
> I found freqtweak and hooked that up. It did  produce a very beautiful
> spectrogram but it didn't solve my problem.
> 
> I need something smarter. Something that will  1) take a few seconds
> of audio when there's no speech (only hum) and treat that as a
> baseline. 2) Reduce the frequencies all over by that baseline.
> 

    Take a look at Gnome Wave Cleaner.  You can select a section and use
it as a noise signature.  It works pretty good for vinyl.


-- 
Jan 'Evil Twin' Depner
The Fuzzy Dice
http://myweb.cableone.net/eviltwin69/fuzzy.html


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