1 |
On Sat, May 8, 2010 at 6:21 AM, luis jure <ljc@××××××××××××.uy> wrote: |
2 |
> on 2010-05-06 at 07:31 Mark Knecht wrote: |
3 |
> |
4 |
>> Does anyone possibly know of any tools in Open Source for exploring |
5 |
>>DSP filter design? Something that might allow me to write equations, |
6 |
>>stimulate the filter, see the results in a GUI? |
7 |
> |
8 |
> i guess a general scientific tool like octave (a free alternative to |
9 |
> matlab, the de facto standard among scientists) would do all you may |
10 |
> possibly want to do, although learning the language might require some |
11 |
> time. i don't know of any "ready-to-go" tool for dsp where you just put |
12 |
> the coefficients and you get the poles, impulse and frequency response, |
13 |
> etc. i would be very interested if anyone knows such tool. |
14 |
> |
15 |
> if you want to work with audio, you can easily program any filter in |
16 |
> csound or any other software synthesis language, like pd, common lisp |
17 |
> music or whatever (i know csound). then you can "see the results" using |
18 |
> an analyser/visualiser like sonic-visualiser, for example. |
19 |
> |
20 |
|
21 |
Hi Luis, |
22 |
Thanks. Octave is something I'm looking at. It's clearly able to |
23 |
model things like DSP filter response (both steady state as well as |
24 |
impulse) but it doesn't seem like the right tool to actually learn |
25 |
about doing DSP filter design. |
26 |
|
27 |
Someone else on another list suggested Faust but it's apparently |
28 |
squirreled away in yet another overlay so I haven't bothered to load |
29 |
it yet. |
30 |
|
31 |
It turns out for actual design just using the web might be one of |
32 |
the better ways for me to go about this. There are lots of sites that |
33 |
allow me to enter the characteristics I'm looking for and then give |
34 |
back the results in z-transform, C code and other ways. Those look |
35 |
fairly easy to transfer to code I can run. |
36 |
|
37 |
I appreciate your ideas. |
38 |
|
39 |
Cheers, |
40 |
Mark |