Qtractor 1.4.0

Qtractor is an Audio/MIDI multi-track sequencer application written in C++ with the Qt 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.

Tags audio editor c++ cpp qt jack
License GNU GPL
State stable

Homepage Download

Recent Releases

1.4.019 Nov 2024 14:12 minor feature: Improved color contrast on track and clip title labels, when given Track foreground and background colors are too similar in lightness.. Clip/Split now also applies to multiple selected clips, on any other Track than current, if the split point (play-head) is found within.. Clip Merge/Export... audio clips now taking the internal audio Resolution (ie. 64 frames/period), independent to former JACK Pipewire buffer-size/period.. Clip Merge/Export... audio clips now take the internal audio period. Resolution (64), independent of the former JACK/Pipewire buffer-size period.. New Clip Mute state property introduced.. New MIDI clip tool option: Normalize / Compress.. Prepping up next development cycle (Qt = 6.8).
1.2.018 Nov 2024 16:05 minor feature: Check whether a LV2 plug-in UI no-user-resize feature is being Explicitly requested.. Auto-backward is now strictly to the play-head position playback Was last started.. MIDI clip editor (aka. piano-roll) undo/redo command stack is Now held at the MIDI clip instance level and thus shared and the Same to all respective linked clips; as bonus, it also survives The main session undo/redo command stack as well.. MIDI clip editor (View/) Drum Mode option is now persistent on a Clip basis and across sessions.. NSM session initialization disabling auto-save and the new Session template features altogether.. crash when removing a MIDI track that is currently set as Ghost to open MIDI clip editor(s), or it's been duplicated just Recently.. New MIDI clip tools: Resize / Join, Split notes.. Session templates do not impose an audio sample-rate anymore, Now being hopefully sample-rate agnostic; also, the edit-head / Tail cursors, loop-start/end and punch-in/out ranges and state Are now simply ignored on loading and saving session templates.. MIDI tracks now show the respective audio output bus name, or Dedicated port name whether applicable, under the 'Bus' column of main tracks left pane, above plugins list-box.. Mixer: also highlight both input and output bus strips, directly. Related to the current highlighted track.
1.1.111 Sep 2024 12:05 minor feature: an incredibly severe, introduced very recently, that Deletes all MIDI files belonging to active clips, when closing And discarding a modified session without saving.. MIDI clip recording when note-off events are missing or Not transmitted.. a relatively old crash-that manifests on undoing Several free-hand drawn events (Edit/Select Mode/Edit Draw) in the MIDI clip editor (aka. piano-roll)..
1.1.008 Sep 2024 20:45 minor feature: MIDI clip step-input when play-head is located beyond or after the end of the active looping/cycle range.. whole clip selection, implied after dragging the lasso. Over the left and before the beginning of timeline.. Clip/Unlink is now a undo/redo-able command.. All sessions now honor their designated resolution property PPQN aka. ticks-per-beat) not subordinated to former ALSA. Sequencer queue anymore, which runs on a higher resolution Still.. Avoid removing MIDI Track/Channel tree items from the Files View (eg. via direct Del keyboard shortcut when in focus).. a probable old of spilled and duplicated shortcut Entries (Help/Shortcuts...) between main tracks/timeline and MIDI clip editor (aka. piano-roll) windows.. fade-in/out curve types of clips when copy-pasted over. The main tracks timeline.. general plugin scan/cache optimization in face of new Plugins added and/or removed.. VST3 Plug-in main/active buses channel count inventory; Also, on updating host parameters, only save and load custom Modified parameter values from current state.. a misssing display and port-name filtering, that Was introduced recently to the MIDI Connections widget only.
1.0.021 Jun 2024 16:05 minor feature: Making up the unthinkable (aka. v1.0.0). General plugin scan/cache optimization.. Improved legibility to all clip title labels (color contrast).. Save/load the correct order and labeling of audio/MIDI send/ return pseudo-plugin inserts.. a display and port-name filtering that was present. Ever since on the Connections widget.
0.9.9104 May 2024 11:05 minor feature: Prepping the unthinkable (aka. v1.0.0-rc2). Updated to latest framework level (Qt gt;= 6.7)
0.9.9012 Apr 2024 21:05 minor feature: Prepping the unthinkable (aka. v1.0.0-rc1). MIDI Controller mappings are now shown on floating tool-tips.. Custom color themes are now file based (*.conf); legacy still Preserved ntl.. Add default GM, GS and XG standard instruments definition file.. Old generic "Portuguese" translation (pt) has been corrected to The more proper "Portuguese (Brazil)" locale (pt_BR).. Up and Down arrow-keys may now be used to change event values on The MIDI clip editor current selection (eg. note velocities).. MIDI clip editor now featuring lollipops for all kind of candy Event values ;).. Make the minimum width of events on the MIDI clip editor larger, Depending on screen resolution and horizontal zoom setting.. Avoid issuing equivalent MIDI track channel volume and panning Via GM standard controllers (CC#7 and CC#10 resp.) to mitigate Recursive or positive feedback loops.. Refined mouse-wheel control step size on the sliders of mixer Strips and generic/stock plugin editor dialogs.. the build checks on whether to use old or newer style of LV2 include headers.. Introducing colored strips on the time ruler headers for loop. And punch recording ranges.. an off-by-one(-pixel) mispositioning of selected events, While on the MIDI clip editor (aka piano-roll).
0.9.3928 Jan 2024 06:25 minor feature: Added build checks on whether to use old or newer style of LV2 include headers. Introducing new Transport/Step/Backward and Forward menu actions, to move the play-head backward and forward, in bar/beat/fraction (snap-per-beat) steps, respectively. Introducing View/Options.../Display/Custom/Style sheet (*.qss) application theming option. Improved MIDI clip editor centering to current mouse pointer position in main timeline (tracks-view); on both horizontal and vertical axes. LV2 Plug-in Control Input Port-change request extension feature support added. Fixed an old one-off plug-in parameter change command aliasing (undo/redo). Updated copyright headers into the New Year (2024).
0.9.3822 Dec 2023 10:45 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.3706 Dec 2023 11:25 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.3611 Nov 2023 16:05 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.3515 Sep 2023 17:45 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.3408 Jun 2023 10:45 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.3329 Mar 2023 14:05 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.3225 Mar 2023 07:45 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.3126 Jan 2023 04:25 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.3030 Dec 2022 03:19 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.2905 Oct 2022 17:25 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.2803 Sep 2022 07:25 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.2708 Jul 2022 06:05 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.2610 Apr 2022 07:45 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.2510 Jan 2022 03:25 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.2417 Oct 2021 19:25 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.2311 Jul 2021 20:05 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.2216 May 2021 00:25 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.2119 Mar 2021 19:05 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.2014 Feb 2021 07:05 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.1922 Dec 2020 01:45 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.1801 Nov 2020 01:05 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.1716 Sep 2020 18:25 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.1609 Aug 2020 06:45 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.1528 Jun 2020 20:05 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.1408 May 2020 15:25 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.1330 Mar 2020 01:05 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.1230 Dec 2019 02:05 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.1111 Nov 2019 06:25 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.1014 Oct 2019 06:25 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.924 Jul 2019 12:45 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.801 Jun 2019 03:17 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.717 Apr 2019 13:45 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.622 Mar 2019 06:05 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.515 Feb 2019 13:05 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.408 Feb 2019 18:45 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.309 Dec 2018 11:45 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.211 Sep 2018 06:25 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.130 May 2018 06:45 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.9.022 Mar 2018 19:45 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.8.631 Jan 2018 13:25 minor feature: Home.. Intro. Screenshots. Features. Requirements. Downloads. Installation. Configuration.. Support. Acknowledgements Downloads.. Git. Screenshots. Documentation.
0.8.505 Dec 2017 14:05 minor feature: Audio clip gain and panning properties are now taken into Consideration when hash-linking (aka. ref-counting) their Back-end buffers.. New out-of-process plug-in inventory scan and cache option, Replacing the old (aka. dummy) VST plug-in scan option and Extending its function to all other plug-in types: LADSPA, DSSI and also LV2 (cache only).. A File System browser and tree-view is finally integrated as a dockable-widget on the main application window (cf. Main menu View / Window / File System).. Drag-and-dropping of session, audio and MIDI files over The main track-list (left pane) is now possible, allowing For yet another quick means to open a new session or add New tracks to the current session.. MIDI input/capture time-stamping has been as much to avoid missing inbound events, when play-head is near. The loop-end point and the loop-start is set below the Absolute first half-a-second ( LV2 Time/Transport speed information is now set on rolling. When in audio export aka freewheeling mode.. Added *.SF3 to soundfont instrument files filter, on View gt; Instruments... gt; Import... file dialog.. A brand new View/Options.../Display/Meters/Show meters on. Track list/left pane option has been added.
0.8.421 Sep 2017 14:25 minor feature: Assigned MIDI Controllers to plug-in's Activate switch are Now finally saved and (re)loaded properly across sessions.. Audio clip panning option property is now being introduced.. Out-of-process (aka. dummy) VST plug-in inventory scanning Now restarts automatically and resumes processing in case of a premature exit/crash; VST plug-in inventory scan/cache. Persistency is now in place.. Desktop entry specification file is now finally independent From build/configure template chains.. Updated target path for freedesktop.org's AppStream metainfo File (formerly AppData).. Changing the View/Options.../Display/Custom/Style theme Takes effect immediately unless it's back to "(default)".. Slightly slower but better approximation to IEEE 32bit Floating point cubic root ie. cbrtf().
0.8.301 Jul 2017 20:45 minor feature: Make sure any just recorded clip filename is not reused While over the same track and session. (CRITICAL). LV2 Plug-in worker/schedule interface ring-buffer sizes Have been increased to 4KB.. track-name auto-incremental numbering sufwhen Modifying any other track property.. WSOLA vs. (lib)Rubberband time-stretching options are now Individualized on a per audio clip basis.. Long overdue, some brand new and fundamental icons revamp.. a tempo-map node add/update/remove rescaling with Regard to clip-lengths and automation/curve undo/redo.. a potential Activate automation/curve index clash, or aliasing, for any plug-ins that change upstream their. Parameter count or index order, on sessions saved with The old plug-in versions and vice-versa.
0.8.212 May 2017 00:25 minor feature: Track-name uniqueness is now being enforced, by adding an auto-incremental number sufwhenever necessary.. Attempt to raise an internal transient file-name registry to prevent automation/curve files to proliferate across. Several session load/save (re)cycles.. Track-height resizing now meets immediate visual feedback.. A brand new user preference global option is now available: View/Options.../Plugins/Editor/Select plug-in's editor (GUI) if more than one is available.. More gradient eye-candy on main track-view and piano-roll. Canvases, now showing left and right edge fake-shadows.. the time entry spin-boxes when changing time offset or length fields in BBT time format that goes across any. Tempo/time-signature change nodes.. French (fr) translation update.
0.8.119 Feb 2017 02:25 minor feature: The View/Options.../Display/Dialogs/Use native dialogs Option is now set initially off by default.. All tempo and time-signature labels are now displayed With one decimal digit, as it was in mostly everywhere Else but the time ruler/scale headers.. JACK transport tempo and time-signature changes are now Accepted, even though playback is not currently rolling; Also, changing (JACK) Timebase master setting (cf.View/ Options.../General/Transport/Timebase) will take effect. Immediately, not needing nor warning for session restart Anymore.. Track/Navigate/Next and Previous menu commands, finally to wrap around the current track list.. Current session (JACK) transport mode option switching is. Now being made accessible, from the main menu and drop-down Toolbar buttons, as well as user configurable PC-keyboard And/or MIDI controller shortcuts (cf. Transport/Mode/None, Slave, Master, Full).. some auto-backward play-head position flip-flopping. When opening a new session while the previous was still on Rolling/playing state, hopefully.. Added French man page.. MIDI clip changes are now saved unconditionally whenever The editor (piano-roll) is or not currently visible.. Audio clip peak/waveform files re-generation performance, Scalability and resilience have been slightly improved.. Some sanitary checks have been added to audio clip peak/ Waveform re-generation routine, as much to avoid empty, Blank, zero or negative-width faulty renderings.. Do not reset the Files tree-view widgets anymore, when Leaving any drag-and-drop operation (annoyingly, all Groups and sub-groups were being without appeal).. Make builds reproducible byte for byte, by getting rid of The configure build date and time stamps.
0.8.013 Dec 2016 01:25 major feature: MIDI clip tools redo/undo processing refactored as much to avoid replication over multiple hash-linked clips; MIDI clip editor's floating selection/anchor event stability has been also improved, in regard to MIDI tools processing range. Auto-backward play-head location, when playback was last started, is now shown on main track-view, as a momentary dark-red vertical line marker. LV2 plugin-in parameter optimization: stuff consecutive series of plug-in's parameter value changes, as much as possible into one single undo/redo command. LV2_STATE__StateChanged is now recognized as a regular atom notification event and raising the current session dirty flag, as normal behavior. Adjusting clip selection edges is now possible and honored while on the the main track-view canvas. Audio peak file caching and rendering, as far as audio clip wave-forms are concerned, have been refactored and optimized a couple of notches higher, on the ephemeral and rather marginal throughput front ;). Fixed a potential crash on the singleton/unique application instance setup. Edit/Select Mode tool-buttons moved into single drop-down tool-button on the main and MIDI editor's tool-bar. Do not reset the current clip selection when updating the main track-view extents eg. while zooming in or out. Automation curve node editing auto-smoothing revisited; also fixed input MIDI RPN/NRPN running status processing, which was crippling some plug-in automation curve nodes, when saved in high-resolution 14-bit mode. Fixed the visual play-head position (vertical red line) while zooming in or out horizontally. Almost complete overhaul on the configure script command line options, wrt. installation directories specification, eg. --prefix, --bindir, --libdir, --datadir and --mandir. LV2 Plugin-in worker/schedule fix: make request/response ring-buffer writes in one go, hopefully atomic.