4 Dec
2008
4 Dec
'08
10:53 a.m.
Hi everyone,
here is a pre-release of songs 0.4:
http://sed.free.fr/songs/songs-0.4pre1.tar.gz
(pre1 because I will use it to record some stuff and do a
release after that, to catch some bugs)
There is a reverb (order 15 CFDN, coming from sverb, but some
parameters may not be that good, so the quality is far from
perfect for an order 15 CFDN I guess).
There is an equalizer (kind of "programmable eq," ie. you write
some code and the equalizer's parameters are generated).
I am not satisfied with the equalizer (it's a FIR designed with
basic window method).
So I need some help. What kind of equalizer do you use (like
"10 band graphic eq" or "parametric eq") (and with which software,
possibly free so I can read the source)?
If you are good at DSP, I would like to generate an IIR filter
out of my input (an arbitrary frequency response coming from
some user's instructions) instead of a FIR. Any technique/pointer to
some documentation/code?
Thanks,
Cedric.
4 Dec
4 Dec
11:28 a.m.
Hi!
I always use Fons Adriaenson's EQ, the LADSPA-plugin called filters.so
It's a very good four-band parametric EQ. Why don't you make LADSPA effects
from the reverb you use and simply implement some kind of simple LADSPA-host.
So people could use your software directly or the plugins independently. Which
would be very good for folk like me.
I'm using ecasound to run my LADSPA-plugins.
For reverb I depend more and more on jconv and IRs. If not, I still use FA's
stereo-reverb g2verb.
Hope that tells you anything helpful.
Kindest regards
Julien
--------
Music was my first love and it will be my last (John Miles)
======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de
1:26 p.m.
Quoting Julien Claassen <julien(a)c-lab.de>de>:
Hi!
I always use Fons Adriaenson's EQ, the LADSPA-plugin called filters.so
It's a very good four-band parametric EQ. Why don't you make LADSPA
effects
from the reverb you use and simply implement some kind of simple LADSPA-host.
So people could use your software directly or the plugins independently.
Which
would be very good for folk like me.
I'm using ecasound to run my LADSPA-plugins.
For reverb I depend more and more on jconv and IRs. If not, I still use
FA's
stereo-reverb g2verb.
Hope that tells you anything helpful.
Kindest regards
Julien
Hi Julien,
thanks for the info. How many reverb can you process at runtime
with jconv? is it constant-time independantly of the reverb impulse
response length? and what computer do you have? I made sverb to
have a realtime reverb on my pentium 200 MHz host. I previously tried
to make an FFT-based stuff but it was not convincing, not
realtime. (Maybe I should have tried jconv or brutefir or whatever...)
Maybe I'll take a look at those parametric eq after all.
LADSPA. Well, no. That's not the way I like it, sorry. :-)
But sure, I will give a look at some effects in there, maybe
the eq I dream of is there.
Hey I completely forgot to say that songs is a little tool to record
and mix audio files (a mini-Ardour, very very mini let's say),
requiring GTK+ and talking to OSS (yes, I know, we are in ALSA
since... long, but my computer was working fine with OSS and I am
very lazy, so I was using a 2.2 kernel up to the destruction of
the computer; maybe the next computer).
Thanks,
Cedric.
1:44 p.m.
Hi Cedric!
I never tried more than stereo with my reverb. But I've heard other stories.
I'm running on a 1.8gHz Athlon CPU. For more info on jconv, you best see the
website or ask Fons. He's done a really great deal about it and it's clever!
Well maybe LADSPA is not how you like it, but the advantage is amazing. You
can just use an already developed thing. And if it's buggy, it will be fixed
once. And you said it: GTK+ + OSS. I don't have OSS, but could probably get
it or I use the OSS-emulation of ALSA. But it's more JACK these days,
especially for recording and other live stuff. Besides: I can't use GTK+.
Probably I could, because there is some blind-friendly piece of software. But
it's all rather dependent... :-(
So at least making your stuff into a LADSPA plugin you would release your
software to more people, which might mean more feedback and help.
Oh gosh, sorry for fighting this course. But it seems so reasonable and
helpful! :-)
Kindest regards
Julien
--------
Music was my first love and it will be my last (John Miles)
======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de
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3 comments
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participants (2)
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Cedric Roux -
Julien Claassen