[LAU] DSP filter design tools?

[Philipp]

Excerpts from Mark Knecht's message of 2010-05-06 19:41:25 +0200:
> Hi all,
>    I wonder if there are any Open Source tools for learning
> software-oriented DSP, most specifically designing filters?
> 
>    I'm an EE but haven't done any real math in years. I just want to
> fool around, write some equations, see the results in some sort of
> frequency (filter characteristics) or time (impulse response) plots.
> 
>    Does anything like that exist?
> 
>    I started looking at Octave but it's clearly over-kill so I figured
> I'd ask if there was a better platform?
> 
> Thanks,
> Mark

I think faust might be useful. It should be reasonably easy to write
whatever you have in faust, and then analyse using whatever audio
analysis software you want.
-- 

Regards,
Philipp