OPL
by discoDSP · Synth · OPL2/OPL3 FM chip emulation
Not rated yet
OPL is discoDSP's emulation of Yamaha's OPL2 and OPL3 FM chips, the sound of late-80s and 90s PC game soundtracks.
It offers two-operator FM with all eight OPL3 waveforms, a percussion mode, 16x oversampling and thousands of presets, for $49 ($34.30 at KVR Marketplace until 15 Oct 2026).
Best for: Keys & Synths, Bass, Drums, Sound Design. Genres: Electronic & EDM, Lo-Fi.
Keywords: FM, hardware emulation, basses, oversampling, film & game audio, lo-fi, preset-driven, 90s, creative, retro, 80s, additive, flat UI, leads, linear-phase, resizable UI, sound design.
What it does
OPL is discoDSP's emulation of the Yamaha FM chips used in AdLib and Sound Blaster sound cards. It started as an OPL2 (YM3812) emulation and version 3.0 moves the engine to the YMF262 (OPL3), with the developer promising "16x oversampling for alias-free sound".
- Two-operator FM: each voice pairs a carrier and a modulator using phase modulation, with an additive mode as an alternative to FM.
- Eight waveforms: sine, half sine, absolute sine, quarter sine, alternating sine, camel sine, square and logarithmic sawtooth, selectable per operator.
- Percussion mode: the chip's built-in drum voices: bass drum, snare, tom, cymbal and hi-hat, each with its own operator settings.
- Envelopes: an ADSR amplitude envelope per operator, as on the original chip.
- Oversampling and rendering: chip oversampling up to 16x, separate playback and bounce quality settings, and linear-phase filtering for offline renders.
- Version 3.0 additions: a resizable vector interface, a voice activity display and key-tracked stereo panning.
- Patches: over 2,000 presets, plus import of Creative Labs SBI instrument files.
Version 3.0 (August 2026) was a free update for existing users. The demo disables audio output during offline rendering.
When to use it
OPL is the pick when you want the exact grit of a 1990s PC sound card rather than general-purpose FM. Compared with Vital or Serum 2, which can do FM between wavetable oscillators, it is far more limited, with two operators and fixed chip waveforms, but that limit is the sound. Unlike four- and six-operator FM synths such as FM8, it won't give you DX-style electric pianos or complex evolving patches. A KVR reviewer found its patches close to a Sound Blaster Pro once a bitcrusher and some noise are added. It is also one of the cheaper synths around.
- Best for: chiptune, retro game music, lo-fi FM basses and leads, and AdLib-style drums from the percussion mode.
- Genres: chiptune, synthwave, lo-fi and retro electronic music.
- Look elsewhere if: you want deep modern FM sound design; FM8 has more operators and routing, and Phase Plant or Serum 2 give more flexible FM inside a bigger synth.
- Tip: add a bitcrusher and a little noise after OPL to get closer to the sound of an original Sound Blaster Pro.
What producers say
Users like its authenticity, value and support, while noting that two-operator FM is a deliberately narrow tool.
- KVR users rate it 4 out of 5 from one review (2024, version 2.4), praising the clear interface, strong basses and brass presets, the price and "very friendly and very responsive" support.
- Synth Anatomy (2026) saw version 3.0 as a substantial update with a rewritten synthesis core and modern interface.
- Criticisms: the KVR reviewer found two operators far from DX7-class FM and not suited to orchestral or film work; a Synth Anatomy reader reported an attenuation knob bug in 3.0.
Where to buy
- KVR Marketplace: $34.30 (regular $49)
- PluginFox: $49
- AudioDeluxe: $49
Tutorials and reviews
Similar plugins
- chipsynth PortaFM by Plogue · Two-operator FM chip emulation · $29.95
- chipsynth MD by Plogue · Mega Drive/Genesis FM emulation · $49.95
- RYM2612 by Inphonik · FM synth (YM2612) · $49
- chipsynth OPMZ by Plogue · Four-operator FM chip emulation · $49.95
- FB-02 by Full Bucket Music · Yamaha FB-01 FM emulation · Free
- chipsynth C64 by Plogue · SID chip emulation · $49.95
- Dexed by Digital Suburban · Yamaha DX7 FM synth · Free
- chipsynth OPS7 by Plogue · Six-operator FM synth emulation · $49.95
- DX7 V by Arturia · FM synth · $149
- Retromulator by discoDSP · Firmware-level hardware synth emulator · $69.30
More from discoDSP
- Discovery Pro by discoDSP · Synth · $139.30
- Corona by discoDSP · Synth · $149
- Vertigo by discoDSP · Synth · $104.30
- OB-Xd by discoDSP · Synth · $69.30
- Bliss by discoDSP · Sampler · $69.30
- HighLife by discoDSP · Sampler · $49
- Retromulator by discoDSP · Synth · $69.30