6 May
2010
6 May
'10
7:41 p.m.
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
6 May
6 May
7:44 p.m.
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
9:29 p.m.
On Thu, May 6, 2010 at 10:44 AM, Philipp <hollunder(a)lavabit.com> wrote:
Excerpts from Mark Knecht's message of 2010-05-06
19:41:25 +0200:
Faust does look interesting but I'm not finding it in Gentoo portage.
Probably it's in an overlay somewhere and I'll have to figure out
which one. (The machine I'm on right now is not something I use for
audio so it's not looking at proaudio if that's where they keep it.)
Cheers,
Mark
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
9:44 p.m.
Le jeudi 06 mai 2010 à 12:29 -0700, Mark Knecht a écrit :
Faust does look interesting but I'm not finding it
in Gentoo portage.
Probably it's in an overlay somewhere and I'll have to figure out
which one. (The machine I'm on right now is not something I use for
audio so it's not looking at proaudio if that's where they keep it.)
You can find it in the sunrise overlay.
7:49 p.m.
Hi Mark,
If you just want to mess with biquads, this is a really good applet
for playing around with them:
http://www.earlevel.com/Digital%20Audio/PoleZero.html .. it'll show
freq. response, but unfortunately won't show impulse response or
phase. But, I've found biquads to be a good starting point for
filters because there is so much information available on their
mathematics and you can create so many different types of filters with
them (btw have you checked out Julius O. Smith's site or
www.dspguide.com?)
There's also Pure Data, which is a free Max/MSP clone. It supplies
both real and complex pole/zero functions, and has an FFT function as
well. There's a learning curve there, but it's pretty flexible.
You'll probably want something to help you solve for gain though if
you end up using Pd.
Cheers,
Louis
On Thu, May 6, 2010 at 10:41 AM, Mark Knecht <markknecht(a)gmail.com> wrote:
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
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
9:27 p.m.
On Thu, May 6, 2010 at 10:49 AM, Louis Gorenfeld
<louis.gorenfeld(a)gmail.com> wrote:
Hi Mark,
If you just want to mess with biquads, this is a really good applet
for playing around with them:
http://www.earlevel.com/Digital%20Audio/PoleZero.html .. it'll show
freq. response, but unfortunately won't show impulse response or
phase. But, I've found biquads to be a good starting point for
filters because there is so much information available on their
mathematics and you can create so many different types of filters with
them (btw have you checked out Julius O. Smith's site or
www.dspguide.com?)
Fun little link. Thanks.
I have been checking out dspguide.com.
This one is actually nice from the desigh POV as it gives you actual
equations and parameters:
http://www-users.cs.york.ac.uk/~fisher/mkfilter/trad.html
Go up one level in the URL to check out other filter types, etc.
There's also Pure Data, which is a free Max/MSP clone. It supplies
both real and complex pole/zero functions, and has an FFT function as
well. There's a learning curve there, but it's pretty flexible.
You'll probably want something to help you solve for gain though if
you end up using Pd.
I think Pd seems like way too much for what I want, and might not be
very applicable to my end goal.
Cheers,
Louis
On Thu, May 6, 2010 at 10:41 AM, Mark Knecht <markknecht(a)gmail.com> wrote:
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
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
5317
days inactive
5317
days old
linux-audio-user@lists.linuxaudio.org
5 comments
4 participants
participants (4)
-
Guillaume Meurisse -
Louis Gorenfeld -
Mark Knecht -
Philipp