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Well, you have succeeded in pulling me right down this rabbithole with you. I believe you’re right about being wrong about Point #2 above. The videos aren’t formatting well here, so it took a bit to hunt down the original link.
Let’s start with … I know nothing about the Volante. But Feedback in Head Space does collapse to mono, so that makes some kinds of diagnostics more challenging. And yes, it is cool that Wow & Flutter follows Delay time. Perfect for a tape emulation running at various speeds.
And I was just plain wrong above, adding the +33% to 1/3 for “accuracy”. A third is 1/3 is a triplet. Three quarter notes fitting into the space of two (1/2), for example. Head Space itself proves this out, in its conversions.
120 BPM, Delay time 1/2. Flip off the Tempo Sync toggle. 1000 mS. Flip tempo back to Tempo Sync, and change Delay time to 1/4 Triplet. Tempo Sync off = 333 mS. One third of 1000.
I have those ratios worked out in some Program or three. I’ll follow up with the exact numbers (some rounding error is required). I like to calculate Golden as D / 1.618 and Silver as D / 2.414 recursively. Downward fits the Delay time = Head Div 1 scheme better.
Same BPM-mS-BPM conversion process. Calc the next number with the ratio. Find a Head Space fractional increment that’s within range. Guesstimate at the percentages until you get close to that Golden / Silver number.