Thanks Olin


I knew what you meant. I will give it a try. I'm not looking for HiFi just
to take the roughness out of the sound I generate now.

Thanks again to all


Tim




> > A switched capacitor filter just switches in/out elements of cascaded
> > R/C lowpass filters.
>
> No it doesn't, have a look at a basic electronics textbook and it will
> explain what they do and how they work (clue: it's not a set of RC
> filters). ...

We must be talking about two different schemes, apparently both called
"switched capacitor" at various times and places.  Whatever you call it, a
scheme that "switches in" capacitors of R-C filters might still be a good
answer here.  What do you call such a topology?

--/\/\/---*---/\/\/-------
          |              |
          |              |
          _              _
          _              _
          |              |
          |              |
          o /            o /
           /              /
          o              o
          |              |
          *---------------
          |
          V


*****************************************************************
Embed Inc, embedded system specialists in Littleton Massachusetts
(978) 742-9014, http://www.embedinc.com

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.