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 PolyStep by KBplugs is a Virtual Instrument Audio Plugin. It functions as a VST Plugin.
Product PolyStep
Developer KBplugs
Price (MSRP) Free
Type / Tags
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
 1.0  Downloads Released
Miscellaneous Information
Copy ProtectionNone
Other / Unknown
Max. 6 items
Latest Version Changes [view all]

Something inspired by the Quasimidi Polymorph; done up in the livery of the OB-1. It's in no way intended as an emulation - I just thought the idea of a synth with four sequencers, one dedicated to pitch and the others freely assignable was interesting enough to do something similar even with the simple step LFOs. It's filter was interesting as well - somewhat similar to the CS-80, but with the LP switchable between 2-pole and 4-pole, the HP and LP can be either series or parallel, and each have a dedicated EG.

I simplified the oscillators to all three being similar to Polymorph's Osc 1; standard waveforms. A couple of functions the PM didn't have - Osc 2 can FM Osc 3, and Oscs 2 and 3 can be Ring Modulated.


32-bit, so will require jBridge, etc., (or a DAW that will bridge) for use on 64-bit systems.

The link on the website is to a Sync.com folder that also contains the .osm Synthmaker source 'schematics', so anyone with SM, or it's successor Flowstone, can alter it to suit. It's hoped that anyone who makes significant improvements will share the result with everyone.

As this was originally built for my own use only, there are no presets included; I wanted to come at the instrument anew each time, as one did with vintage analog hardware.

Made with SynthMaker

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