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tonus Pro ColoristbyKBplugs
 tonus Pro Colorist by KBplugs is a Virtual Instrument Audio Plugin. It functions as a VST Plugin.
tonus Pro Colorist
Product tonus Pro Colorist
Developer KBplugs
Price (MSRP) Free
Type / Tags
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
 2.0  Downloads Released
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Copy ProtectionNone
Other / Unknown

Calling this Pro Colorist because it's inspired by the voice architecture/signal flow of the ARP Pro Soloist, but with most of the controls used to create the preset sounds brought out to the front panel, to create your own - it does not contain emulations of the Pro Soloist's presets; this a Pro Soloist-inspired synth: you make your own sounds.

The Pro Soloist had three different signal paths:

1- Saw and/or Pulse thru a bank of high pass filters, then to the VCF.

2- Pulse thru a bank of band pass, then to the VCF or, directly to the VCA.

3- Pulse thru a different bank of band pass filters, then directly to the VCA.

Either or both the AR and ADSR envelopes can modulate the VCF and/or the VCA.

Interestingly it didn't have LFO PWM, but the PW could be modulated by the ADSR;

here, the P-Bend button can toggle to (LFO) PWM.

A second oscillator and noise source have been added.

Also added the ability for each filter path to cross-fade between the oscillator/s and noise.

The aftertouch destinations can alternatively be controlled by the mod wheel.

Be aware - there is NO claim this is going emulate the actual sound of a Pro Soloist - it only somewhat emulates the unique and slightly bizarre signal path and filtering of it.

Thanks so much to 'bluesmoke' for doing the parameter-naming on this one.

Clicking on the panel's 'Info' button will display extensive notes on operation.


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, only four simple presets included as starting points; I wanted to come at the instrument anew each time, as one did with vintage analog synths.

Made with SynthMaker
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tonus Pro Colorist

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