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 Poseidon by VirSyn is a Virtual Instrument Audio Plugin for Windows and Mac OS X. It functions as a VST Plugin, an Audio Units Plugin and an RTAS Plugin.
Product Poseidon
Developer VirSyn
Price (MSRP) €199 - €219
Type / Tags
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
 1.5  Downloads Released
 1.5  Downloads Released
Miscellaneous Information
Copy ProtectionDongle (USB-eLicenser)

At first sight Poseidon looks like a simple structured analog "Oscillator-Filter" synthesizer with all controls visible at once. This gives Poseidon ease-of-use with almost no learning curve. The real power is working under the hood: The oscillator is nothing less than the spectral modelling sound generator of VirSyn's CUBE synthesizer and the variable slope Filter is a completely new design based on VirSyn's unique F-domain synthesis.


  • Spectral modelling oscillator
    • 512 oscillators.
    • Harmonic/inharmonic spectra.
    • Arbitrary noise spectra.
    • 8 times unisono mode.
  • Time machine
    • Free control over temporal evolution of sound.
    • Modulatable time stretching/compression.
    • Time freeze.
  • Timbre control
    • Natural Brightness control.
    • Balance partial spectrum and residual noise.
    • Frequency stretching.
    • Amplitude/Frequency blur filter.
  • F-Domain Filter
    • Lowpass / Highpass / comb / Anti-resonance.
    • Unique design with resonance and bandwidth.
  • Spatializer
    • Independent moving stereo position of each partial.
  • Resynthesis
    • AIFF/WAV sample import.
    • Sine spectrum.
    • Residual spectrum.
  • Effects
    • Chorus/Phaser/Flanger.
    • Distortion.
    • Echo/Delay.
    • Reverb.
  • Arpeggiator
  • Scala compatible Microtuning
  • MIDI learn function
Discussion: Active


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