Introduction
This is a brief explanation of some of the more popular Linux audio applications found in Ubuntu. The software's Ubuntu package name is listed in brackets behind the software's name. To install one of these from the list, run:
sudo apt-get install package_name
A large collection of audio applications have been bundled into the UbuntuStudio packages, and can be installed on any Ubuntu system with the command sudo apt-get install ubuntustudio-audio ubuntustudio-audio-plugins
Audio Editors
Rezound (rezound) A fully featured audio editor, complete with an easy to comprehend interface. Website
Snd (snd) An extremely powerful and infinetly configurable audio editor. Website
DJ Software
Mixxx (mixxx) Mixing software for audio files. Website
TerminatorX (terminatorx) A realtime audio synth that allows one to "scratch" audio files. Website
Multi-Track Editors
Ardour (ardour3) Multitrack audio recording for linux. Website
Audacity (audacity) A very popular and easy to use audio editor with multi-track capabilities. Website
Notation
Denemo (denemo) A GTK frontend for Lilypond
Lilypond (lilypond)
NoteEdit (noteedit) Website
Plugin Libraries
LADSPA (ladspa-sdk) Linux Audio Developer's Simple Plugin API Website
blop (blop) Bandlimited wavetable-based oscillator plugins for ladspa hosts.
caps (caps) Collection of refined ladspa plugins.
cmt (cmt) Computer music toolkit collection of various ladspa plugins Website
fil (fil-plugins) Parametric equalizer ladspa plugin
mcp (mcp-plugins) Ladspa plugins designed for Alsa Modular Synth
omins (omins) Collection of ladspa plugins geared at modular synthesizers Website
swh (swh-plugins) Large collection of ladspa plugins by Steve Harris Website
tap (tap-plugins) Large collection of ladspa plugins by Tom Szilagyi Website
vcf (vcf-plugins) Audio EQ biquad filter ladspa plugins Website
Programming Languages
CSound (csound) A non-realtime programming language for traditional composition with "instruments". Website
Pure Data (puredata) A graphical object-based programming language for midi, audio, and video manipulation. Website
Routing & Sound Servers
Samplers
LinuxSampler (linuxsampler)
Specimen (specimen)
Sequencers
Hydrogen (hydrogen) Website A drum machine and sequencer.
Muse (muse) Website
Rosegarden (rosegarden4) A full-featured MIDI sequencer and notation editor with a similar style to Cubase. Website
Seq24 (seq24) A light-weight, fast loop-based MIDI sequencer. Closest software equivalent to hardware sequencers like the Yamaha RM1x and the Roland MC series. Website
Synthesis Apps