MT-32 - MAME machine

Musical Instrument (Electronic) published 39 years ago:

MT-32 © 1987 Roland

The Roland MT-32 was a multitimbral MIDI sound module designed to provide high-quality synthesized orchestral and electronic sounds for home musicians and computer music systems. Developed by Roland, it used Linear Arithmetic (LA) synthesis, combining short PCM samples for attack transients with digitally generated waveforms for sustain portions. It offered 8-part multitimbrality plus a dedicated rhythm part, making it one of the earliest widely adopted external sound modules for MIDI-based production and PC gaming audio.

TRIVIA
The MT-32 was the first product in Roland’s LA synthesis family, which also included the D-50 and related modules.

It provides 8-part multitimbrality plus 1 rhythm part, allowing complex layered arrangements from a single unit.

It uses Linear Arithmetic (LA) synthesis, combining PCM attack samples with synthesized sustain waves, a key innovation of Roland in the late 1980s.

It contains 128 preset timbres and 30 rhythm sounds, organized into instrument categories such as piano, strings, brass, synth, and effects.

It was widely adopted by early MS-DOS game developers, especially Sierra On-Line, LucasArts, and Origin Systems, making it a de facto standard for PC game music in the late 1980s and early 1990s.

The MT-32 predates General MIDI (1991), meaning it uses a proprietary patch map, which makes MIDI files non-universal between systems.

It supports SysEx-based deep programming, allowing games and software to load custom patches directly into the module.

It is capable of up to ~32 partials of polyphony, meaning real polyphony depends on sound complexity rather than fixed voice count.

Two hardware revisions exist (old and new), with differences in DAC resolution, CPU, and output quality.

It became so influential in gaming that modern emulation projects like Munt exist specifically to reproduce its behavior accurately.

It is often considered the foundation of Roland’s computer music ecosystem, leading to CM modules (CM-32L, CM-64) and later Sound Canvas GS systems.

CONTRIBUTE
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