On Tue, 3 Oct 2006 15:18:22 -0700, "Lumpy"
<lumpy@digitalcartography.com> wrote:

Not base related but some of you gizmo heads
might know what I'm looking for.

Some reasonably simple shareware AF filter
design software. Passive RC filters. I simply
want to plug in and edit R and C values and
have the results shown or on a simple graph.

I can do it simple enough with the formula
1/(2*pi*C*R) but I'd like to see the dB per
octave low/hi pass and I'd like to be able
to plug in more than one filter network
on the single audio level signal.

TIA -

Lumpy n0eq 

check this page for something helpful .....
http://www.muenster.de/~welp/sb.htm#analyzer

and if you want a ready to go " super killer "  dsp audio
 processing / filter program  read about this software
DSP Blaster which is no longer available ......
I'll make a working copy available to you !
http://www.qsl.net/n7qjp/DSP_2.htm
it's way better than the dedicated JPS nir-12 dsp
device  but ( of course ) needs a computer .
this program can do amazing / impressive  things with
 audio filtering.