[PD] basic DSP stuff
piotr at majdak.com
Mon Nov 7 21:26:46 CET 2005
Chuckk Hubbard wrote:
> One more question... regarding how filters work, is there no intuitive
> way to express it?
For me, the most intuitive way to explain a filter is looking at
convolution. Every linear filter can be described as a convolution of a
signal with the impulse response of a filter. Although, any pole in a
filter leads to a impulse response with infinite length and for the
explanation it's easier to look at a finite impulse response.
A great link to explain filtering by convolution is the "joy of
There is a java applet where you can play with convolution a little bit...
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