KDE-Apps.org Applications for the KDE-Desktop 
 GTK-Apps.org Applications using the GTK Toolkit 
 GnomeFiles.org Applications for GNOME 
 MeeGo-Central.org Applications for MeeGo 
 CLI-Apps.org Command Line Applications 
 Qt-Apps.org Free Qt Applications 
 Qt-Prop.org Proprietary Qt Applications 
 Maemo-Apps.org Applications for the Maemo Plattform 
 Java-Apps.org Free Java Applications 
 eyeOS-Apps.org Free eyeOS Applications 
 Wine-Apps.org Wine Applications 
 Server-Apps.org Server Applications 
 apps.ownCloud.com ownCloud Applications 
 KDE-Look.org Artwork for the KDE-Desktop 
 GNOME-Look.org Artwork for the GNOME-Desktop 
 Xfce-Look.org Artwork for the Xfce-Desktop 
 Box-Look.org Artwork for your Windowmanager 
 E17-Stuff.org Artwork for Enlightenment 
 Beryl-Themes.org Artwork for the Beryl Windowmanager 
 Compiz-Themes.org Artwork for the Compiz Windowmanager 
 EDE-Look.org Themes for your EDE Desktop 
 Debian-Art.org Stuff for Debian 
 Gentoo-Art.org Artwork for Gentoo Linux 
 SUSE-Art.org Artwork for openSUSE 
 Ubuntu-Art.org Artwork for Ubuntu 
 Kubuntu-Art.org Artwork for Kubuntu 
 LinuxMint-Art.org Artwork for Linux Mint 
 Arch-Stuff.org Art And Stuff for Arch Linux 
 Frugalware-Art.org Themes for Frugalware 
 Fedora-Art.org Artwork for Fedora Linux 
 Mandriva-Art.org Artwork for Mandriva Linux 
 KDE-Files.org Files for KDE Applications 
 OpenTemplate.org Documents for OpenOffice.org
 GIMPStuff.org Files for GIMP
 InkscapeStuff.org Files for Inkscape
 ScribusStuff.org Files for Scribus
 BlenderStuff.org Textures and Objects for Blender
 VLC-Addons.org Themes and Extensions for VLC
 KDE-Help.org Support for your KDE Desktop 
 GNOME-Help.org Support for your GNOME Desktop 
 Xfce-Help.org Support for your Xfce Desktop 
openDesktop.orgopenDesktop.org:   Applications   Artwork   Linux Distributions   Documents    LinuxDaily.com    Linux42.org    OpenSkillz.com   


- Content .- Fans (19) .- Knowledge Base  . 



KDE Sound Application

Score 89%



Link:  Link
Minimum required   Qt 4.x
Downloads:  8014
Submitted:  Apr 14 2007
Updated:  Nov 24 2014


Qtractor is an audio/MIDI multi-track sequencer application written in C++ with the Qt4 framework. Target platform is Linux, where the Jack Audio Connection Kit (JACK) for audio and the Advanced Linux Sound Architecture (ALSA) for MIDI are the main infrastructures to evolve as a fairly-featured Linux desktop audio workstation GUI, specially dedicated to the personal home-studio.


- Multi-track audio and MIDI sequencing and recording.
- Developed on pure Qt4 C++ application framework
(no Qt3 nor KDE dependencies).
- Uses JACK for audio and ALSA sequencer for MIDI
as multimedia infrastructures.
- Traditional multi-track tape recorder control paradigm.
- Audio file formats support: OGG (via libvorbis),
MP3 (via libmad, playback only), WAV, FLAC, AIFF
and many, many more (via libsndfile).
- Standard MIDI files support (format 0 and 1).
- Non-destructive, non-linear editing.
- Unlimited number of tracks per session/project.
- Unlimited number of overlapping clips per track.
- XML encoded session/project description files (SDI).
- Point-and-click, multi-select, drag-and-drop interaction
(drag, move, drop, cut, copy, paste, paste-repeat, delete, split, merge).
- Unlimited undo/redo.
- Built-in mixer and monitor controls.
- Built-in connection patchbay control and persistence
(a-la QjackCtl).
- LADSPA, DSSI, native VST and LV2 plug-ins support.
- Unlimited number of plug-ins per track or bus.
- Plug-in presets, programs and chunk/configurations support.
- Unlimited audio effect send/return inserts per track or bus.
- Loop-recording/takes.
- Audio/MIDI clip fade-in/out (linear, quadratic, cubic).
- Audio/MIDI clip gain/volume, normalize, export.
- Audio/MIDI track and plugin parameter automation (dynamic curves,
sample&hold, linear and spline modes).
- Audio clip time-stretching (WSOLA-like or via librubberband),
pitch-shifting (via librubberband [9]) and seamless sample-rate
conversion (via libsamplerate).
- Audio/MIDI track export (mix-down, merge).
- Audio/MIDI metronome bar/beat clicks.
- Unlimited tempo/time-signature map.
- Unlimited location/bar markers.
- MIDI clip editor (matrix/piano roll).
- MIDI instrument definitions (a-la Cakewalk(tm) (*.ins));
SoundFont (*.sf2) and MIDI Names XML (*.midnam) files also supported..
- MIDI controller mapping/learn/assignment (mixer and plug-in parameters).
- MIDI system exclusive (SysEx) setups.
- JACK transport sync master/slave.
- JACK session support.
- NSM (Non Session Management) support.
- MMC control surface enabled.
- MIDI Song Position cueing support.
- Configurable keyboard shortcuts.


O.6.4 2014-11-24 Baryon Throne Beta

- Fixed some old loop-recording clip drawing glitches.
- Current assigned track/channel instrument definition names for MIDI controllers, note keys, RPN and NRPN, are now in effect on the MIDI clip editor drop-down lists, whether available.
- Clip/Take/Range... input dialog values are now properly sanitized as long to prevent invalid take/folding ranges.
- Audio capture/export file type default now set to "wav".
- Extending punch-in/out over loop-recording/takes modes.
- Make audio tracks monitoring always flow while playback is rolling, independently of their mute/solo state.
- Fixed undo/redo conversion of audio clip offsets under (automatic) time-stretching eg. due on tempo changes. (ticket by Holger Marzen, thanks).
- Latch/momentary MIDI Controllers toggle mode introduced (a request by AutoStatic aka. Jeremy Jongepier, thanks).
- JACK client/port pretty-name (metadata) support is being seamlessly introduced. (EXPERIMENTAL)
- Audio frame/MIDI time drift correction is now an option on View/Options.../MIDI/Playback/Enable MIDI queue time drift correction.
- Transport auto-backward feature now honoring last position playback was started.
- Introducing brand new application user preferences on View/Options.../Display/Options/Custom style and color themes (eg. "KXStudio", by Filipe Coelho aka. falkTX).
- Mixer widget gets automatic multi-row strip layout.
- Clip fade-in/out now follows time-stretch resizing, via shift/ctrl+click and drag one of its edges.
- Fixed a typo causing FTBFS when VST plug-in support is explicitly disabled (./configure --disable-vst).

O.6.3 2014-09-22 Armed Hadron Beta

- Make the mouse-wheel to scroll the plugin list views, when not hovering a direct-access parameter slider.
- Mixer widget gets (un)dockable Inputs and Outputs panels, also with their respective title captions.
- Plugin instantiation is now constrained as much to prevent any audio channel output overriding.
- Existing plugin presets may now be selected right(-click) from plugin list context-menu (ticket by Harry van Haaren, thanks).
- So-called "painting" over multiple selected event values, while on the MIDI clip editor view pane below the main piano-roll (eg. note velocities, controller values, etc.) is now split into two similar painting modes, whether the sub-menu Edit/Select Mode/Edit Draw is set on (free-hand) or off (linear).
- Drag-and-copy of plug-in instances across tracks or buses (ie. cloning) now also copies the direct access parameter setting (ticket by Holger Marzen, thanks).
- File/Save As... now prompts and suggests an incremental backup name for existing sessions files.
- Zooming in/out increment is now augmented by whether shift /ctrl keyboard modifiers are set (on a ticket request by
Holger Marzen, thanks).
- LV2 Time position event messages for plugin atom ports that support it is now being implemented.
- Attempt to break extremely long audio file peak generation on session close or program exit (as reported by EternalX,
thanks again).
- MIDI Controllers Hook and Invert properties are now properly saved for tracks (after bug report by Nicola Pandini, thanks).
- A segmentation fault when closing with VST plugins open has been hopefully fixed (after a patch by EternalX, thanks).
- Messages standard output capture has been slightly improved as for non-blocking i/o, whenever available.
- Automation curve node editing has been slightly improved in regard to time positioning and resolution.

O.6.2 2014-07-07 Boson Walk Beta

- Prevent linear and spline automation curve modes for all integer valued subjects. Also, make sure those values are rounded to the nearest integer away from zero.
- Fixed save of LV2 Presets for plugins with state files.
- A man page has beed added (making up Gürkan Sengün's work on debian, thanks).
- When moving plugins by eg. drag-and-dropping across tracks, automation curves were being left behind, maybe leading to unpredictable mistaken behavior. Hopefully, not anymore.
- Translations install directory change.
- Automation curves are now automatically re-adjusted to tempo map node changes (after a ticket by Holger Marzen, thanks).
- Audio/MIDI files or plugins found missing on session load are now subject for an explicit modal warning message and prompt for an immediate session backup salvage.
- Changing instrument plugin programs is now an undo/redo-able command operation, especially for DSSI but also for plugins that come with the LV2 Programs interface extension support (http://kxstudio.sourceforge.net/ns/lv2ext/programs).
- Drawing, selecting and/or resizing of MIDI note events that extend across tempo/time-signature changes is now made a bit more correctly over the MIDI clip editor (aka. piano-roll), especially regarding to current snap-to-beat setting (after an outstanding ticket by yubatake, thanks).
- Once again, audio frame/MIDI time drift correction has been slightly refactored to improve MIDI input monitor and timing.
- Discrete automation curve node values may now be edited via a numerical entry floating spin-box on double-click (as yet another request by AutoStatic aka. Jeremy Jongepier, thanks).
- Pressing shift/ctrl keyboard modifiers while double-clicking on a plugin list entry now briefly reverses the current View/Options.../Plugins/Editor/Open plugin's editor (GUI) by default option preference.
- Fixed an old crash lurker when switching output buses that implied a change on the number of audio channels, while on tracks that have (auto-)monitor turned on and at least one active plugin in chain (yet another ticket by AutoStatic aka. Jeremy Jongepier, thanks).
- MIDI Controller assignment (aka MIDI learn) and/or automation of plugins (de)activation state has been added (as requested by AutoStatic aka. Jeremy Jongepier, thanks).
- LV2 UI Idle and Show interfaces support added.
- Allow the build system to include an user specified LDFLAGS (patch by Alessio Treglia aka. quadrispro, thanks).

O.6.1 2014-04-29 Bitsy Sweet Beta

- New user preference option added as View/Options.../Display/Transport/Hold auto-scrolling (follow play-head) on edits (after requests by Holger Marzen and Louigi Verona, thanks).
- All color chooser dialogs were missing proper titles.
- Audio peak file re-generation and clean-up has been hopefully fixed and cache optimized (re. drawing audio clip waveforms).
- Fixed initial session snap-per-beat setting on main toolbar.
- Clip/Export...'ed files are now made persistent, no questions asked (after a ticket by Oliver Kester, thanks).
- Portuguese (pt) translation added (by Esteban Viveros, thanks).

0.6.0 2014-03-21 Byte Bald Beta.

SUSE(openSUSE 13.2 Binary RPM (i586))
SUSE(openSUSE 13.2 Binary RPM (x86_64))
SUSE(openSUSE 13.2 Source RPM)
openSUSE Tumbleweed
openSUSE 13.2
openSUSE 13.1
openSUSE 12.3
Debian 7.0 (amd64)
Debian 7.0 (i386)
Fedora 20 (i686)
Fedora 20 (x86_64)
Fedora 20 (i686)
Fedora 20 (x86_64)
Ubuntu 14.10 (amd64)
Ubuntu 14.10 (i386)
Send to a friend
Other  Apps  from rncbc
Report inappropriate content

goto page: prev   1  2  3  4 


 Mandriva 2008.0 i686

 by mapi on: Dec 15 2007
Score 50%

Mandriva 2008.0 i686 rpm here:


Reply to this


 export the project ?

 by MiTcX on: Dec 30 2007
Score 50%

great app !
i would like to save the project but not in a media file, can we ? like the audacity .aup

Reply to this


 Re: export the proje

 by MiTcX on: Dec 30 2007
Score 50%

ok, i found it.
maybe the 2 windows when you want to save are unusual, for me

Reply to this


 Re: export project

 by rncbc on: Jan 1 2008
Score 50%

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

rncbc aka Rui Nuno Capela
Reply to this


 congratulations !

 by dragonlord79 on: Jan 6 2008
Score 50%

Hey man you did a really good job with Qtractor !
It was time that a cool audio sequencing application was developed !
To be honest I haven't tried it yet, but I'm following with pleasure your constant improvements and efforts. I am a hard user of Cubase SX and I would really love to definitely switch to Linux also for that purpose, and achieve 0 latency recording and mastering.
The key thing for these applications is a serious VST instruments support. Once you get it you're done ! Have you planned it at all for the future ?

Again, many congratulations !

Reply to this


 Re: congratulations !

 by rncbc on: Jan 6 2008
Score 50%

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 ;)


rncbc aka Rui Nuno Capela
Reply to this


 Wow! great work.

 by tankaa on: Mar 13 2009
Score 50%

Thank you

Reply to this


 improve the style

 by dridk on: Apr 5 2009
Score 50%

That's cool!!Congratulation

You need now, to improve de design with nice icon and graphics! ( oxygen power!)

Look this : garageBand on mac Os for example:

Reply to this


 Re: improve the style

 by rncbc on: Apr 6 2009
Score 50%

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.


rncbc aka Rui Nuno Capela

Reply to this



 by thebadapples on: May 1 2009
Score 50%
the bad apples
klaatu lastname 5

the bad apples
Antarctica, Ville de Penguin
Last visit Dec 6 2011
0 Friends
1 Groups

More info
Send a message
Add as friend
Other contents

unbelievably great app. i am thoroughly impressed and am enjoying using this. congratulations and THANK YOU!


Reply to this

goto page: prev   1  2  3  4 

Add commentBack

How do you like Plasma 5?
 The best KDE Desktop ever.
 Definitely a nice improvement.
 Not decided yet. Haven't tried it yet.
 I do not like some of the changes.
 KDE is taking the wrong way.
 I am still sticking with KDE 3.5.
 I have no opinion, but wanted to vote anyway.

 Who we are
More about us
Frequently Asked Questions
Updates on identi.ca
Updates on Twitter
Facebook App
Content RSS   
Events RSS   

Add App
Public API
About KDE-Apps.org
Legal Notice
Spreadshirt Shop
CafePress Shop
Sponsor us
Report Abuse

Copyright 2003-2014 KDE-Apps.org Team  
All rights reserved. KDE-Apps.org is not liable for any content or goods on this site.
All contributors are responsible for the lawfulness of their uploads.
KDE and K Desktop Environment are trademarks of KDE e.V.