Hydrogen is an advanced drum machine for GNU/Linux. Hydrogen's main goal is to bring professional yet simple and intuitive pattern-based drum programming.

Here are some key features of "Hydrogen":

General

· Very user-friendly, modular, fast and intuitive graphical interface based on QT 3.
· Sample-based streo audio engine, with import of sound samples in .wav, .au and .aiff formats.
· Support of samples in compressed FLAC file.

Sequencer and mixer

· Pattern-based sequencer, with unlimited number of patterns and ability to chain patterns into a song.
· Up to 64 ticks per pattern with induvidual level per event and variable pattern length.
· 32 instrument tracks with volume, mute, solo, pan capabilities.
· Multi layer support for instruments (up to 16 samples for each instrument).
· Ability to import/export song files.
· Unique human velocity, human time and swing functions.
· Multiple patterns playing at once.

Other

· OSS and Jack audio drivers, with assignable Jack ports.
· ALSA MIDI input with assignable midi-in channel (1..16, ALL).
· Import/export of drumkits.
· Export song to wav file.
· Export song to midi file.

What's New in This Release:

· WASP Ladspa plugins are included.
· Various Jack audio output bugfixes were done.
· A new color theme was added.
· A bug which caused 100% CPU usage was fixed.