Qtractor 1.5.7 - A Summer'25 Release

Hi all,

Qtractor 1.5.7 (summer'25) is out!

Change-log:

  • Give some slack time to stabilize, when updating or changing audio bus channel counts, mitigating the probability to fault when unregistering old and registering new PipeWire/JACK ports in immediate succession.
  • Transport/Loop Set behavior slightly changed, now toggling the loop range if the edit-head/tail match current loop-start/end.
  • Introducing Aux-Send audio bus I/O matrix functionality.
  • Corrected greater-than-2-channel audio clip waveform drawing, while on certain zoom levels, an old bug lurking there since dawn, quite an example to the evil of too-early optimization ;)
  • Draw all audio clip peaks+rms waveforms slightly compressed, so that low-level signals have improved visibility.
  • Warn when saving any type of session into an extracted archive directory.

Description:

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.

Website:

https://qtractor.org

Project page:

https://sourceforge.net/projects/qtractor

Downloads:

https://sourceforge.net/projects/qtractor/files

Git repos:

https://git.code.sf.net/p/qtractor/code
https://github.com/rncbc/qtractor.git
https://gitlab.com/rncbc/qtractor.git
https://codeberg.org/rncbc/qtractor.git

Wiki:

https://sourceforge.net/p/qtractor/wiki/

License:

Qtractor is free, open-source Linux Audio software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

Enjoy && Keep the fun!

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