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 Vivaldi by SK is a Virtual Instrument Audio Plugin. It functions as a VST Plugin.
Product Vivaldi
Developer SK
Price (MSRP)
Type / Tags Synth (FM)
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
1.2 b107
Downloads Released
Miscellaneous Information
Copy ProtectionNone


  • 4 x 2 Operator FM Synthesis.
  • Up to 32 voices polyphony adjustable from the UI, including a smart & smooth voice stealing algorithm.
  • Up to 4 parts per note for voice layering, including support for velocity and key window.
  • Sample precise support for all usual MIDI controllers (volume, expression, panpot, pitch bend,...).
  • Support for all sample rates (22k, 44k, 48k, 96k,...).
  • True 32bit floating point signal processing on per-sample-basis (no down scaling).
Latest User Reviews Average user rating of 4.00 from 4 reviews

Reviewed By Bonteburg
June 14, 2002

Yes, it´s four Tens for this instrument:
One because it has the best and low end to its bass sounds that I´ve so far heard in a VSTI. Check out Bass 04, it´s mamzing.
One because it has an amazing number of presets, none of which are redundant
One because you can tweak the sounds till they´re totally weird, yet interesting...and still don´t sound like any of the presets.
One because at in low qualty mode (which still sounds very nice to me) it is rather easy on my cpu. Very good.
A decent nine because it offers all this and it´s still free. Strange, indeed.
The interface always makes me think of something you can eat, something meaty with cream in it...I wouldn´t want to play with it when I have stomach flu or a hangover, but it stil looks nice.

Anyway: My bass synth of choice from now on.
Cheerio :)

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Reviewed By LlunaSol
June 14, 2002

I see myself using more and more Vivaldi, because it's one of those synth which is basically "useful". It has a strong FM character on its own, of course, but I have to admit that I've been surprised by how responsive is and how easy is to get tons of sounds from it.

It has some strongs points, one that this FM synth is the closes one that I've used to an analog in terms of easy of use and predictability on its structure, another is that it can sound FMish and surprisingly quite analog, so it allows to cover a wide palette of sounds (just check its internal bank), but one of the most importants is that it's a 4 layers synth which allows to create wonderful patches.

The interface is clear and has get the most of it's possibilities once you understand you got 4 tabs on right for the 4 layers and each one has its elements on the left tabs. The 3 levels of CPU use allows using lots and lots of instances on a medium machine. No documentation still, but it's support is premium.

I sincerelly recomend it, because being free is a real present, but sounding so fine, it's one of my favorites. Triangle II and Vivaldi are now my first choice of sounds, despite having several commercial synths. Impressive :-) Thanks Stefan!

Just check it! :-)

(No, still, no documentation, although I wouldn't mind.)Read more

Reviewed By x_bruce
May 29, 2002

Vivaldi was a pleasant surprise. 4 OP FM synths can sound weak and boring but Vivaldi - in particular because of it's user interface - is easy to program and creates interesting timbres.

It has a fairly warm sound (for a digital synth) once you start working with the various tuning capabilities and can create fairly complex motion type pads along with good FX and simpler FM style sounds.

The down side is CPU useage which is pretty high when using up to 4 operators. It should be noted you can use as little as one although you can't expect much diversity unless using a minimum of 2 operators.

The presets are ok but you will be better suited programming your own.

Don't let the FM tag scare you off. The programming features are fairly narrow but in a good way.

It's free, it has an interesting sound to it.Read more

Reviewed By Emerald Tablet
May 3, 2002

Get ready for lift of

This plugin creates very odd test-tone like sounds
Use it for electro tunes or other space like futuristic creations.

overall rating a 7 ++

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Average user rating of 4.00 from 4 reviews

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