Hydrogen

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

Features:
_General_
* Very user-friendly, modular, fast and intuitive graphical interface based on
QT 3.
* Sample-based stereo audio engine, with import of sound samples in .wav, .au
and .aiff formats.
* Support of samples in compressed FLAC file.
* Internal 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 individual level per event and variable
pattern length.
* 32 instrument tracks with ADSR, 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, pitch and swing functions.
* Multiple patterns playing at once.

_Other_
* JACK, ALSA, PortAudio and OSS audio drivers.
* ALSA MIDI and PortMidi input with assignable midi-in channel (1..16, ALL).
* Import/export of drumkits.
* Export song to wav file.
* Export song to midi file.

____ 0.9.4 Changes____

After more than 3 years we're happy to announce the release of a new
stable version of hydrogen. You can download the sourcecode of hydrogen
0.9.4 now from the sourceforge servers[1].

The new version makes use of QT4 and includes several new features and
components.
Here's a small list of the biggest changes:

* a new soundlibrary manager
* mute groups
* improved midi support ( now configurable )
* several new translations
* playlists
* a new audiofile browser with integrated preview
* new manual
* official support for OSX
* save/load/import/export patterns
* download drumkits/songs/patterns from external servers
* and many more..

I would like to thank everyone who was involved in the development! Two
years ago it looked like the project is dead, but with the help of a
fantastic community it was possible to keep up Alessandro's good work
and improve it. Thank you and enjoy the new version!!!!


____ 0.9.3 Changes____
* Integrated WASP plugins by Artemiy Pavlov, including innovative Booster, Noisifier and X-Shaper
* New, much improved color scheme; Fixed various bugs related to Jack audio driver
* Fixed 100% CPU usage bug.

____ 0.9.2 Changes____
* New graphics
* Bug fix in export song (using JACK driver)
* Bug fix in export song (wrong samplerate)
* Follow playhead in song editor
* Automatic audio driver selection
* New PortAudio and PortMidi drivers
* Mac Os X port
* Pattern size increased: up to 4 bars
* Random pitch variations
* New instrument editor
* ADSR for instruments
* Low pass filter
* Insert/delete a range of patterns in song editor
* ...and much more ;)