you’re welcome 
you could try this EQ : http://www.dontcrack.com/freeware/downloads.php/id/4016/software/Classic-EQ
it’s freeware 
I actually found a lot of LADSPA plugins right here, on the ardour manual, but I’ll take a look at this, thanks a lot. 
BTW: Just one completely out of topic question, I have a guitar+some efects+a Digitech RP2000 and a 15W Peavey, what would be the best way to record the sound from my guitar? Mic the Peavey, (I have only “normal” computer mics, no professional mics) or plugin the output of the RP2000 to the input of my SbLive sound board? It’s really of the topic, but if you could give me your personal opinion…I would like to hear it.
Thanks.
What I would do in your situation is to avoid mic’ing the amp because of a lack of a “proper” mic (and preamp that goes with it). Your effect rack contains some amp modeling and certainly has some level of preamplification you can use to control the gain of your output before it goes inside your sound-card. There are advantages in outputing your effect box to your soundcard : you can play in silent mode and at the same time simulate the amp of your choice (among choices the digitech offers you). This is to me the best compromise considering what you’ve got. If you want to capture your amp output through a mic, you would have to upgrade a few things, and that’s unfortunately not for free. By the way, I don’t know the quality of the SBLive sound card (the ADCs, the builtin preamps, and so on). I have a RME HDSP system (Multiface II) and a RME QuadMic preamp for mics (4 channel preamp module) and I must say, to my ears, the incoming sound is quite nice (no buzzing crap, transparent). But I had to save up money for quite a while to afford this system. My experience with cheaper sound cards is not very good. The ADCs and the preamps sit inside the computer so they pick up quite some crap. You always have to clean up your recordings for this, which is really annoying. But at the end, YMMV
I’d recommend going direct as well, you may have to fiddle with the levels a bit, also from my experience you might find that you get some mains hum if the unit has a cheap external power supply. Alternatively if the amplifier has a headphone output you might try that - though the level might be too high for your card. Unfortunately it appears that the RP2000 doesn’t have a USB output which some more recent ones do, which could be another option if it had.
That said experimenting with the microphone might yield some interesting, if not particularly purist, results
/J\
hum and buzz from the guitar is mostly pretty terrible, in comparison to other signal sources, so what the Soundblaster adds to it is likely irrelevant.
Electric guitars just “don’t do” dynamic range. Not compared to other things like a violin or a singer.
A cheap-and-cheerful “comes with the soundcard” microphone in front of the peavey will likely not cope with the sound pressure offered, and distort horribly.
Hello, I’ve went with direct and made a very simple one take test, which you can find it in here. The point was to actually test a clean guitar with a fabric preset of the Digitech RP2000, both in a note by note, and on chords, if you listen to it correctly, you’ll see that when I start doing the chords, the sound starts to crack up, and that’s my problem. I never tryed with distortion, since it wass 2 am when I’ve did this. (alas, please don’t look at the errors on the guitar, I was really tired, and it was just a test)
I did tryed some EQ tough, it didn’t helpd, the output volume of the Digitech I have to put on max, otherwise the SBLive would pick it up really low volume, do you guys have any tips?
(BTW, you were all correct, mic is a hell hehehe)
Thanks a lot guys.
if i was listening carefully enough, the sound is crackling even on a single notes, about 9. and 10. sec.?
cheers,
doc
Probably, but it cracks like hell on chords.
For realtime permissions on Slackware you can use set_rlimits:
Is this a realtime issue?
Don’t know for sure that it is - is jack reporting any xruns? The slight artifacts I could hear in the sample sounded more like dropped frames than clipping to me, but maybe somebody with a better ear for that kind of thing can give their opinion.
for me it does not sound like a clipping but more like some drop-out.
i would try to increase the latency, than the craclings should disappear at some point.
cheers,
doc
Hum…and how do I increase the latency? As I sayd before, when it comes to sound, I’m a complete newbye on linux…hehe
(Actually, I used to use Windows just for this…hehe)
if you are using qjackctl for controlling jackd, it is pretty easy:
go to the setup dialog and try to increase ‘frames/period’
or/and ‘periods/buffer’ variables.
cheers,
doc
No qjackctl…it uses qt4, and I still depend a lot on qt3 
No qjackctl…it uses qt4, and I still depend a lot on qt3
You can download the qjackctl-0.2.x series here:
http://qjackctl.sourceforge.net/qjackctl-dl1.html
which should build fine with qt3. I’m still using 0.2.22 myself with no problems, and it really makes everything jack-related much easier.
Zarnick,
Using jackd like you do ‘jackd -R -n peacemaker -v -d alsa’ implies default values for the framerate and number of periods, respectively 1024 and 2.
1- try fiddling around with these parameters (-p framerate -n #periods )
2- check your rlimits config. In /etc/security/limits.conf, I have this :
@audio - nice -10
@audio - rtprio 99
@audio - memlock unlimited
This requires a recent PAM lib which slackware most likely has. This also implies that you have a unix group called ‘audio’ and that you belong to that group. In a shell, type ‘id’ and check what group you are belonging to.
I don’t know how slackware manages its groups and users by default. Debian based distros (which I use) come with this group out of the box, with a GID of 29. If you want to create such a group, then you can use the KDE user and group admin interface (System Settings -> User Management -> enter the administrator mode, add a group with this GID and add yourself in that group). But then, you would have to set up udev rules for the /dev/snd so that they belong to the group audio. E.g. on my system :
ls -l /dev/snd results in
crw-rw---- 1 root audio 116, 5 2007-10-09 09:10 controlC0
crw-rw---- 1 root audio 116, 4 2007-10-09 09:10 hwC0D0
crw-rw---- 1 root audio 116, 3 2007-10-09 09:10 seq
crw-rw---- 1 root audio 116, 2 2007-10-09 09:10 timer
3- kernel : was it compiled with realtime or low latency patches ?
Slackware doesn’t use PAM, unless it’s been added in the last release, which I haven’t had a chance to investigate. See my comment about set_rlimits above.
Thanks a lot for all you help on this issue, but I was making some tests, and I think it’s actually the pickups(it’s a new guitar), since I’ve used and old guitar, and the problems were almos completly gone 
I’m going to check this as soon as I get bether from my cold.
Thanks a lot once again guys, you guys rock!