Audio file editing software/skills
abw at wardley.org
Wed Jun 14 19:32:26 BST 2006
Jess Robinson wrote:
> I have a piece of self-recorded audio, (of a talk), that I'd like to
> remove some clicks/crackles from.. Has anyone got any software
> recommendations or appropriate advice?
I'm assuming you're looking for something free/open or cheap? Have a
Denoising is a fairly specialised task. Look for something that
specifically does it or has DSP filters available to do it. Be prepared
to spend some time playing with the settings to find something that
works well without flurbling[*] the voice.
Depending on what kind of clicks and crackles they are, you may also be
able to improve it by filtering through a graphic equaliser or
parametric equaliser. Find the frequency of the clicks/crackle and
notch them out. It's a simpler approach, but the problem is that most
crackles and clicks appear between 1 and 4KHz which is where your voice
range will be. Kill too much crackle and you lose the voice too.
[*] turn the denoiser up full to hear what vocal flurbling sounds like.
It's generally something to be avoided.
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