Peter Onion wrote:
> If you already have the code in place for IIR filter, and it has
> improved things, then I would try increasing the number of taps in your
> filter so that more samples are taken into account.  Personally IIR
> filters give me nightmares so I stick to FIR ones where I can make a
> reasonable prediction of their behaviour with nothing more that a pencil
> and a sheet of squared paper ;-)

Not all IIR filters are hard to analize or finnicky.  Consider

  FILT <-- FILT + FF*(NEW - FILT)

This is a simple single pole low pass filter, and the equivalent of an
analog R/C filter.  That's about as easy as it gets.


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