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The Scarlet Devil Mansion :: Haematite

Haematite is a SoundFont MIDI synthesizer library written entirely in

Crystal. This is a port of the excellent MeltySynth by Sinshu, expanded with new

features. There is also my equivalent library for Common Lisp, CL-MeltySynth

Source Code

CL-MeltySynth

Example Videos

Sonic the Hedgehog's Green Hill Zone by Masato Nakamura

Warcraft 2's "Human 2" by Glenn Stafford

Sonic the Hedgehog's "Spring Yard Zone" by Masato Nakamura

Rise of The Triad's "Smoke and Mirros" by Lee Jackson

Mega Man 2's "Airman" by Takashi Tateishi

Features

Wave synthesis and Sound

64-bit internal audio engine
High quality interpolation
Loads SoundFont files
Waveform and Envelope generators
Multiple lowpass filter choices for the voices
Vibrato and Modulation LFOs

MIDI processing

Note on/off
Bank/patch selection with optional remapping (remaps unknown presets to bank 0/128)
Modulation
Volume control and Panning
Expression
Hold pedal
Pitch bend
Tuning
NRPN support
Support for MIDI controllers 71 and 74

Effects

Multiple reverb choices, including a port of Zita-Rev1, with controllable parameters
Chorus effect inspired by an 80s synth with model number ending in "-60"
Stereo enhancer effect
Reverb, Chorus, and Stereo Enhancer can all be enabled/disabled individually
Filters on the voices can be changed to non-standard models
Filters on the channels are selectable

Other things

Standard MIDI file support
RIFF-based MIDI file support (RMI, only the MIDI data is loaded)
Loop extension support
Performance optimizations