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

The original MeltySynth

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