[music-dsp] Median filtering (just curious)

James McCartney asynth at io.com
Sat Feb 19 23:45:16 EST 2005


supercollider has had a median filter ugen for years.
they are good for eliminating short clicks and pops.
median filters clip off peaks as the history gets larger, because the 
peak is an extreme, not a median.
so, long median filters just become clipping.

On Feb 19, 2005, at 11:19 AM, Keith Handy wrote:

> Has anyone ever used median filtering on audio?  I would think it
> could have some usefulness, maybe for removing certain types of clicks
> (although not the kind you get from bad edits) ... or what if you used
> a *drastic* median filter, i.e. a large number of samples at a time,
> as a special effect -- anyone tried that?  I wonder what that would
> sound like.
>
> I could try it myself and see, but I'm just wondering if it's been 
> done.
>
> -Keith
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