[sdiy] [synth-diy] numerically controlled superoscillator without hard sync

[Roman Sowa]

I did variable rate wavetable synthesis back in the early 90s of last 
century, even not knowing about PPG existence. But anyway, it used 32 
samples per cycle, that could be linked up to 4k of evolving waveform.
Every sound generated this way was a bit like combo organ sound. No 
matter how you draw the waveform, 32th harmocnic was anoying.

The sound is easy recognizable, and has its character, but was too much 
lo-fi to me. VCF helped a lot and finally it turned out as a nice 
polysynth, although I never wanted to go back to the idea of variable 
sample rate ever again.

Roman

W dniu 2014-02-09 20:38, Tom Wiltshire pisze:
> Hi Damian,
>
> This is a good idea. I think it came up in a discussion some time ago
> about the PPG - a famous variable sample rate instrument. We were
> considering possible ways to do something similar, and this approach
> was mooted.
>
> It really does have a lot going for it - you could do wave shaping,
> or phase distortion, or whatever, and as you say, any aliasing
> products can be forced to remain harmonic. The advantages of this
> can't really be overstated.
>
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