Hydrogen: a Virtual Drum Machine

Hydrogen is an advanced drum machine which provides a professional, yet simple and intuitive, pattern-based drum programming interface.

General features:

• Very user-friendly, modular, fast and intuitive graphical interface based on Qt 5.
• Sample-based stereo audio engine, with import of sound samples in .wav, .au and .aiff formats.
• Support of samples in compressed FLAC file.

Sequencer and mixer features:

• 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 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 features:

• JACK, ALSA, PortAudio, OSS and PulseAudio 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.

As a working minimum, the following Ubuntu packages have been or might be installed:

• hydrogen
• hydrogen-data
• hydrogen-doc: can't find documentation
• hydrogen-drumkits

whereas hydrogen-drumkits-effects has not been installed because it is too big.