Image 01


Rui Capela , Portugal
Music Production

Music Production 54 comments

by rncbc
Score 83.4%
May 07 2020
all respective dependencies are also available from (my) OBS repository (

cheers - Sep 23 2014
thanks && cheers - Jun 10 2013
thanks for keep trying :)

anyhow, whould update and try again with today's svn trunk r1818 (qtractor ?

- Feb 04 2011
i am sorry. but the above fix has been already confirmed by someone else.

i wonder whether you have all the necessary Qt4 modules installed.

ps. and yes, i've tried on Qt4.7.0, however as said, this issue only seems to occur on gentoo, which i am no connoisseur :) - Feb 03 2011
heads-up: the above unconfirmed correction is in current svn trunk.
- Jan 27 2011
this is gentoo right? i've got a few reports re.libqt4 builds on gentoo to have this QGtkStyle meta-declaration missing...

try adding the following after line 118 of src/qtractorMainForm.cpp:


the result should look like this:
118: #if defined(Q_WS_X11) && QT_VERSION >= 0x040600
119: #undef QT_NO_STYLE_GTK
120: #include <QGtkStyle>
121: #endif
then, make again.

HTH - Jan 20 2011
thankU - Oct 06 2009
Thanks. Awe! Those GB colors are already mysteriously similar to Qtractor's. I wonder why should one make it even more of the same with icons and stuff :) from where I stand, ppl would start to think it's a GB clone, when it never was meant like that. But I see your point.

Cheers. - Apr 06 2009
Thanks, and please, do have a try. It will much appreciated.

Regarding VST support: it is in deed in the workings. On the workbench there's DSSI and native VSTi plug-in support. That's right, with DSSI-VST you will reach windows VSTs through wine, and with native VSTs you should have an open road to native linux VSTs (yes, there are some few out there;)

it's coming, but I can't really tell when it will be ready ;)

byee - Jan 06 2008
Maybe we're confusing disparate concepts; probably it needs some clarification.

In qtractor, exporting is the process to produce a mix-down of one or several tracks resulting into a brand new media file; it's like rendering audio _or_ MIDI into a new media file (either audio file _or_ SMF, not both).

OTOH, regarding the "project" concept, IIUC, is here known and called as "session", as the program's "working session". This working session is rightly stored as a XML encoded file (.qtr file ext/suffix) as being the complete description of the arrangement, including all audio/MIDI tracks, clips, buses and the whole setup made while operating the application program. Have this noted, that a session file does NOT ever store or include any kind of media contents, rather just the file path references where it might get found in the local file system.


Cheers && Happy New Year - Jan 01 2008
That is a light Qt 4.3 version mismatch somewhere (nb. you're dealing with a Qt4 version suited for KDE4, maybe Qt4.3.0, which I have skipped).

Please, edit src/qtractorMainForm.cpp and change line 232, or around where it reads:

#if QT_VERSION >= x040300

change it to:

#if QT_VERSION >= 0x040301

or, just get rid of the #if/endif block if you like; it's only usable on >= Qt4.3.1 anyway ;)
rncbc aka Rui Nuno Capela
- Sep 28 2007
as i used to say, i'm no debian expert, but i do remember that the packages name to look for ought to be libjack-dev, libjack0-dev or even libjack0.100.0-dev on some older dabianese package naming convention.

guess its in ubuntu's universe repository but who am i to tell that for sure :)

cheers. - Sep 09 2007
I guess you've updated from CVS alright, but somehow you probably forgot to regenerate the autoconf stuff.

Remember, when checking out from CVS you must do the `make -f Makefile.cvs` all over gain.

Seeya. - Apr 17 2007
Oops. You're on Qt 4.1, the offending code is already over Qt 4.2, sorry.

As quick workaround you may edit the offending file, src/qtractorFileListView.cpp, line 594, and where you read:


substitute it exactly by:

setItemExpanded(pGroupItem, !isItemExpanded(pGroupItem));

or you can wait and I will fix that on CVS in a few minutes :)

Cheers. - Apr 17 2007
Export is not yet featured. Keep in mind this is still alpha stage on development.

But you can bounce your session into a new track. Just add a new empty audio track, connect the outputs of all other tracks to the input of this new one, arm it for recording and start record+play. There you go, you'll be recording (in real time, though) what would be the result of a future export operation.

Depending on your current audio capture option (see menu View/Options.../Audio/Capture) the captured file might be in the Ogg Vorbis format.

There is no current nor future plans for MP3 encoding support, so that's a definite NO for the last half of your question. Remember that MP3 is only supported on playback. It has nasty technical drawbacks and its not a very wise choice for audio recording altogether. Choose OGG instead, or better yet, FLAC. That's only my opinion, of course.

Cheers. - Apr 15 2007
Thanks for the heads-up on FHS.

Ah,... on so-called "sane" distros (aka not "braindead broken", sorry for the pun) qt3 and qt4 do coexist. And that's what I'm used to. Setting the build environment for each one has been just a matter of PATH tweaking, if one at all. Not a debianese mess, even if its FHS compliant or what. Sorry again :)

Particular problem with Qt deployment on debian seems to be the way that Qt programs, headers, libraries and what not, are kept splintered across the file system. On "sane but FHS broken" distros, all of the Qt tree is usually kept under one single point. Just a minor cost of a particular distro non-standard design ;)

Of course, I should know better that debian guys/gals always know what they're doing :)

Sorry for the twisted humor, and most of all, just plain debian ignorance ;)

Now, back to reality, does it help in any way having this one for a start?

$ ./configure --with-qt=/usr/share/qt4

Just trying... but I'm afraid, due to the way my reasoning works, it should also fail on debian FHS splintering :P

Cheers. - Apr 15 2007
You have to start jackd sound server in first place. Make it a try with yours truelly QjackCtl :)

But, if its the very first time you are dealing with jackd, please be prepared that things might get harsh before you have a full top-notch audio system under you rig :)

In summary you'll have to make sure you, as a user, have realtime scheduler privileges.

Check your /etc/security/limits.conf file for some entries like this ones:

@audio - rtprio 90
@audio - nice -10
@audio - memlock 4000000

Then you have to add yourself (the username) part of the audio group. For the fast track, and most promiscuous too, just replace '@audio' by '*' in the above lines.

After those modifications, which should be carried on by root anyway, you must relogin as your regular user and then start jackd. If you're lacking QjackCtl GUI friendliness, you can start it from the command line, like this:

$ jackd -R -dalsa -dhw:0 -r44100 -p1024 -n2

Another issue could be that the ALSA sequencer kernel module might not be currently loaded. You can get the head-start by doing it as root:

# modprobe snd-seq-midi

From now on you can hit qtractor and start playing around. I hope you get the picture all right.

- Apr 15 2007
I've found that my autoconf/qmake wrapping always clashes on debian. On debian based distros (e.g. ubuntu), it has come to my knowledge, deployment of the Qt devel tools (qmake, uic, moc) is not as usual and somehow the debianese folks decided to rename the executables to somethink like qmake-qt4, moc-qt4, uic-qt4 and what not. This is braindead broken IMO, and it surely is non standard. Why on earch would one rename the original executable files? Betas me.

OK. Let's try another way.

First of all make certain you have all Qt4 devel tools installed. That is qmake, moc and uic. As said, probably those are renamed with the -qt4 suffix. You have to cheack that out. Let's assume qmake has been renamed to qmake-qt4.

Second, make sure you have all the dependencies also in place, that are libjack, libasound (alsa), libsndfile, ladspa, libvorbis(enc, file) and libmad, specially the devel ones.

Third, on the qtractor source tree you may find the win32 sub-directory. Move in there and just type `qmake-qt4 && make`.

Hopefully it will build fine, and you'll end there with the `qtractor` executable ready to run and play.

Enjoy. - Apr 15 2007

Music Production 2 comments

by rncbc
Score 58.0%
Mar 24 2020

indeed all download links had a typo in their urls, now fixed.

glad you'll find qxgedit of some use. although xgedit95 works fine on wine, qxgedit was and still is an exercise in native linux programming.

hope you enjoy my other apps as well. all done in the same forge ;)

- Apr 22 2010
GTK-QT Theme Engine

GTK1 Themes 280 comments

Score 50.0%
Mar 10 2008
I'm using it with KDE 3.2 right now on SUSE 9.0.

Works fine although I had to hack a symlink on /opt/gnome/share/themes for making Plastik -> Qt (ln -s Qt Plastik).

However I have a complaint. There's one GTK widget type that don't get it correctly, making it quite unusable: the slider widgets, GtkVScale and GtkHScale, don't get their thumb slider drawed at all.

Any hint's? - Feb 26 2004