[sdiy] Interesting article on top octave generators.

[Adam (synthDIY)]

> On 3 Jan 2025, at 06:25, Michael E Caloroso via Synth-diy <synth-diy at synth-diy.org> wrote:
> 
>  The master oscillators were offset so that n and n+1 divider pairs produced the (approximate) same pitches.  Because the TOG can't produce equal 12th root of 2 temperaments at all its dividers, this offset resulted in dissimilar scaling offsets per semitone with both ranks engaged.  With pitch modulation, it produced a richer string ensemble chorus effect and deviated the waveshapes of each rank.  The cent difference of ranks when a key was depressed was not uniform between keys, the largest being ~3.3 cents.  This gave the Polymoog an organic sound quality and probably prevented dividers from syncing up.

Ha that is pure genius!

Non-uniformity of detuning between keys  - that's a very real world "acoustic instrument" property.

Also non-uniformity of bend range between keys can sound interesting  

(or terrible, as I'm discovering with this strange beast I've recently taken delivery of...)

A


https://suzukimusic-global.com/products_single.php?parent_cate_cd=2&products_cate_cd=20&products_cd=178
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