Qtractor – A Audio/MIDI multi-track sequencer Rui Nuno CAPELA rncbc.org
[email protected] Abstract sequencer for MIDI, thus currently being a Linux- only application. There are not known intentions Qtractor is a MIDI/Audio multi-track sequencer on support to any other platforms. application written in C++ around the Qt4 toolkit Qtractor is free open-source software, licensed using Qt Designer. The initial target platform will be Linux, where the Jack Audio Connection Kit under the GPL and is welcoming all collaboration (JACK) for audio, and the Advanced Linux Sound and review from the Linux Audio developer and Architecture (ALSA) for MIDI, are the main user community in particular and the public in infrastructures to evolve as a fairly-featured Linux general. Desktop Audio Workstation GUI, specially dedicated to the personal home-studio. 2 Installation Keywords 2.1 Requirements Linux, audio, MIDI, JACK, ALSA, multi-track, The software requirements for build and run- recording, sequencer time are listed as follows: 1 Introduction Mandatory: As a new Linux Audio offering, Qtractor targets ● Qt4 (core, gui, xml) [2] and positions itself comfortably tagged as for the ● JACK [3] techno-boy bedroom home-studio. However, in ● ALSA [4] general, it is just yet another digital audio and ● libsndfile[5] MIDI multi-track composition and arranger software application. The design and functionality Optional (opted-in at build time): model takes as fundamental the now usual multi- track composing techniques for modern music- ● libvorbis (enc, file) [6] making. It aims to be intuitive and easy to use. ● libmad [7] Unfortunately, for the classic and erudite ● libsamplerate [8] musician, there are and will be no plans to integrate any kind of score editor.