Description

OPL3 is a FM sound synthesiser with the Yamaha YMF262 or YMF289 sound chip.

It is paired with a YAC512, YAC513 or YAC516 companion floating-point DAC chip.

It is an upgraded version of the OPL2. OPL3 is not part of the standard, but is used mainly in Brazil instead of OPL4.

Specifications

18 channels customisable as below
- 18 2-operator channels
- 15 2-operator channels + 5 drum channels (drum setting on)
- 6 2-operator channels + 6 4-operator channels (4-op setting on)
- 3 2-operator channels + 6 4-operator channels + 5 drum channels (both settings on)
Simple stereo (hard left, center or hard right)
4 channel sound output
4 new waveforms (alternating-sine, "camel"-sine, square and logarithmic sawtooth)
4 operator mode, pairing 2 channels together to create up to six 4 operator FM voices
reduced latency for host-register access (the OPL2 had much longer I/O access delays)
sine-wave lookup table and envelope generator are properly synchronized