I tried looking up some history in regards to the origins of oscillators with F-shift and F-spread like the graintable and formant oscillators of the Virus and couldn't find anything. Does anyone know what the first synth that featured this was? Was it the Virus?

Origins of oscillators with F-shift and F-spread
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The Grain Table and Formant Table oscillators introduced by firmware update 2.0 are unique to the Virus TI, AFAIK. Other synthesizer (plugins) offer similar granular synthesis types but none are identical.
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That's so cool. I can't get over how good they sound. I've watched the videos you posted last time I brought this up and I still wish I understood this better. They're like some kind of resonant overtone or something.
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Massive by Native Instruments offers an even more powerful Bend and Formant mode for its many wavetables. It was released as standalone application and plugin 2006.
https://www.soundonsound.com/m…-years-native-instruments
https://blog.native-instrument…sive-past-presets-future/
The Virus TI OS 2.0 which introduced the Grain and Formant oscillators was released in spring 2007. It’s hard to tell how much of an influence NI Massive had on this development, since new digital synthesis types were discovered and implemented by software manufacturers back then. The main problem was that PC CPUs were not powerful enough to handle these instruments, and a DSP based hardware like the Virus had a clear advantage.
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Virus sounds so much better than Massive to me.
Do you know of any documentation that goes in depth in how these oscillators work?
I found this but its not very detailed grain and formant oscillators - more info
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I haven’t come across anything that would explain technical details if these oscillators.
The most elaborate description is still found in the Manual Addendum in the chapter What’s new in version 2.0?
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Its hard to believe that after 15 + years they are still largely a mystery.
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The most elaborate description is still found in the Manual Addendum in the chapter What’s new in version 2.0?
Can you post a link for that, please?
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Can you post a link for that, please?
Click on the ? at the bottom right corner of the TI plugin and click on "What's new..."
It's not very detailed at all. At least not the kind of in depth explanation that I wish I could find.
And obviously some people out there understand it, I mean Kemper engineered it, and Adam Szabo has implemented them into Viper, although I've never used it personally.