discoDSP has announced the release of OPL v1.1 for macOS, Windows and Linux.

The OPL is a digital sound synthesis chip developed by Yamaha in the mid 1980s. Among other products, it was used in sound cards for PC, including the Ad Lib card and early Sound Blaster series.

At a technical level: the emulator has channels comprised of 2 oscillators each. Each pair of oscillators is usually combined via phase modulation (basically frequency modulation). Each oscillator can produce one of eight waveforms (sine, half sine, absolute sine, quarter sine, alternating sine, camel sine, square, logarithmic sawtooth), and has an ADSR envelope controlling its amplitude. The unusual waveforms give it a characteristic sound.

discoDSP's OPL FM Synthesizer includes 2480 Sound Blaster instrument presets and is available as AudioUnits, VST, VST3 and Standalone for Windows, macOS (compatible with Catalina) and Linux.

Price: $29.


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