The Usual Suspects Osirus (DSP56300 Emulator) 1.3.20 MultiOS + ROM’s interface
The Usual Suspects Osirus (DSP56300 Emulator) 1.3.20 MultiOS + ROM’s

The Usual Suspects Osirus (DSP56300 Emulator) 1.3.20 MultiOS + ROM’s

At a Glance

TypeSynth
CategoryVirtual Analog Synth
FormatVST2, VST3, AU, CLAP
PlatformMAC
DAWAny
Size185MB

Osirus is a free software emulation of the Motorola DSP56300 chip, the same processor found in classic Access Virus synthesizers. It runs as a VST2, VST3, AU, or CLAP plugin on macOS and Windows, and comes with working Virus ROMs so you can get the authentic sound of that hardware in your DAW. This version includes an updated Patch Manager with grid view, per-instance MIDI port selection, and fixes for patch drag-and-drop and FX restore in Multi Mode. It also reduces CPU usage and improves CLAP parameter automation. Osirus is aimed at hobby producers and sound designers who want the character of a Virus synth without owning the hardware. It suits FL Studio, Ableton Live, and Logic Pro, and works with any DAW that supports the listed formats. The download is 185 MB and includes the plugin and ROMs. Whether you are making electronic music, film scores, or just exploring classic digital synth tones, Osirus gives you a flexible and faithful emulation in a modern plugin wrapper.