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Osirus
Osirus by The Usual Suspects is a Virtual Instrument and a Virtual Effect Audio Plugin for macOS, Windows and Linux. It functions as a VST Plugin, an Audio Units Plugin, a VST 3 Plugin, a LV2 Plugin and a CLAP Plugin.
Product
Version
2.2.6
Product
Version
2.2.6
Product
Version
2.2.6
Instrument
Formats
Effect
Formats

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30-Day: 347; 7-Day: 266; Yesterday: 227

Osirus is VST emulation of an Access Virus B/C, code ported to function exactly as the hardware using the DSP56300 emulator.

The Access Virus C Synthesizer is a versatile and well-engineered instrument designed to provide musicians, producers, and sound designers with a wide range of sound shaping capabilities. Its features include:

  • Advanced Sound Architecture: The Virus C is equipped with a three-oscillator virtual analog engine that offers a variety of wavetables, filters, and modulation options. This enables users to create a diverse array of sounds, from vintage analog emulations to modern and experimental textures.
  • Wavetable Synthesis: The synthesizer allows users to engage in wavetable synthesis, allowing for the manipulation and morphing of complex waveforms. Real-time control over wavetables provides a dynamic element to sound design.
  • Dual Multimode Filters: With a choice of filter types such as low-pass, high-pass, and band-pass, the Virus C enables precise tonal shaping. Real-time filter envelope controls contribute to the expressive potential of the instrument.
  • Modulation Matrix: The comprehensive modulation matrix facilitates the routing of modulation sources to various destinations, adding depth and movement to sound patches.
  • Onboard Effects: The Virus C features a range of built-in effects including reverb, delay, phaser, and distortion. These effects can be customized to enhance the sonic characteristics of the synthesizer.
  • Performance-oriented Design: The ergonomic layout of the Virus C is optimized for both studio production and live performance. Its 16-part multi-timbral capability supports complex arrangements.
  • Connectivity Options: MIDI, USB, and analog I/O connections ensure seamless integration with external devices, DAWs, and other instruments.

Latest User Reviews

Average user rating of 5.00 from 3 reviews
Osirus

Reviewed By samdaman09 [all]
February 13th, 2026
Version reviewed: 2.1.1 on Windows

Wow! this is simply amazing and was up and running in no time. The choice of 3x Default 'Skins' adds to a great user experience as well as the many user created skins available today designed by some of the most talented creative artists. Hats off to The Usual Suspects team for another amazing precise emulation of a classic. You are very, very much appreciated.

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Osirus

Reviewed By OldMe [all]
February 7th, 2025
Version reviewed: 1.4.1 on Mac

I admit that I am absolutely amazed by the possibilities of this vst, I had the chance to own many original synths; EMU Emax, Prophet VS, Ensoniq, Kurtsweil, etc ..., and I own a lot of great VST (Diva, Omnisphere, Zebra, etc ...) but this Virus TI was released (for me :) a short time ago, so I did not know it.(yes, i am older then you).

But this emulation ... I admit to being "falling in love" again with the big fat sounds of this OsTIrus ... simply INCREDIBLE.

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Osirus

Reviewed By ballacr75 [all]
August 3rd, 2023
Version reviewed: 1.2.30 on Windows

This is a real Virus B and C emulation, the patches sounds the same to the original hardware.

Congrants to developers!!.

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Comments & Discussion for The Usual Suspects Osirus

Discussion
Discussion: Active
Fruitynator
Fruitynator
4 August 2023 at 9:12am

I get an error when scanning the plugin in FL Studio. Maybe I did something wrong? Just wanted to let you know.

clown134
clown134
13 November 2023 at 10:31am

hey did you get it working? im not sure what the issue youre having is i just wanted to let u know i got it working in the latest fl studio.

Fruitynator
Fruitynator
14 October 2024 at 3:17pm

Yeah, meanwhile it is running fine.

classic
classic
5 August 2023 at 3:55pm

Crashes Mixcraft 10 and Cubase 12 Pro with the first load.

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