Roland MT-32 Multi-Timbre Sound Module (1987)

A MIDI sound module using L.A. synthesis, released by Roland in 1987 as their first entry into the PC audio market.

Overview

The Roland MT-32 Multi-Timbre Sound Module is a MIDI synthesizer module introduced in 1987. It was Roland's first product targeting the PC audio market, designed to bring professional-quality sound to personal computers. The unit uses L.A. (Linear Arithmetic) synthesis, the same sound generation technology found in Roland's D-50 synthesizer. It supports 32-note polyphony across 8 multitimbral parts, allowing it to play multiple instrument sounds simultaneously from different MIDI channels. With 128 preset sounds stored in ROM, the MT-32 became widely used in computer music and gaming applications.

Specifications

Production year	1987
Original price	US$695
Polyphony	32
Multitimbrality	8 parts
Sound generation	L.A. synthesis
Preset memories	128
N.waves	128 PCM
MIDI ports	In, Out, Thru
Algorithm	13

Design

The MT-32 incorporates Roland's L.A. synthesis technology, marking it as part of the same sound family as the D-50, using a combination of PCM samples and synthesized envelopes to create complex tones.

Context

Roland positioned the MT-32 as their first venture into the PC audio market. At its release, it was significantly more expensive than competing sound solutions like the Ad Lib card, which retailed for about $130 compared to the MT-32's $695 price tag.

Market

Despite its high initial cost, the MT-32 gained recognition for its superior sound quality. By 2015, units were observed selling for low prices on eBay, though working examples continue to be valued by collectors and retro computing enthusiasts.