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unkargherth ·
As SM already has some bandlimited oscillators should be fairly easy to add a Parabola one, which in itself is nothing fancy, but allows good posibilities.
I suspect that std oscilators are wavetable based ( exception here for sine?), adding up harmonics upto nywuist withexp decaying amplitude each. So adding a parabola is only a question of having athe formulae for coefficients and the correct scaler ( and this last isn't really needed), so it isn't had to be a heavy work
Nu Audio Science ·
I could be way off the mark here but i remember an old SE1 that claimed to be Parabolic by multiplying two Sawtooths of equal phase, Which i think is Ringmodulation so would this work ? I have seen this technique referred to at synth sites as Parabolic distortion ?
unkargherth ·
what you talking about is Parabolic saturation. IK made aport of anSync ensemble for this ( look up the forum for it)
Never heard about the two in-phase saw's for a parabola. Anyway, i tried on SM and the result is "more or less" an inverted parabola wave. More or less becuase it shows very heavy peaks at zero-crossings. Didn't done "hearing" test, but the graph seems to show that also it should alias like hell
On the other side, and waiting for synthmaker team official reply, shouldn't be so hard to code a Native Parabola osc ( internally should be very similar to a saw)
Incidentally, i coded a crude version of it, but it falls in the same category as saying that a Ramp is a polarity inverted sawtooth. Good for near nothing and terrible as a wave generator
Nu Audio Science ·
lol
Tom7777 ·
Is it possible to use Sync on the Oscs? anyone doing this yet?
unkargherth ·
If you search on examples forum, for teh stefan sine osc, i posted there a version that supports hard/softsync
But if you are asking on standard "Native" oscilators, the answer is NO, Not in a any way i can think of now
Tom7777 ·
But if you are asking on standard "Native" oscilators, the answer is NO, Not in a any way i can think of now
Ok i thought so, i hope one gets added to SM sometime 🙂
malc ·
Hi all,
Adding a Parabola osc should be no problem, just another wavetable osc so easy enough as you say. At the moment the wavetable osc's calculate at load time and as many people have noticed this results in an annoying delay. We're going to be addressing this issue and after that we'll add the parabola osc.
Regarding the syncing, it should really be in the oscillator components and it will be at some point. Before we do this we'll probably initiate some discussion as there are different ways this could be implemented.
Tom7777 ·
Cool sounds good 🙂
unkargherth ·
Think i found an inmediate way to Add hard and/or softsync to standard oscilators ( in fact to any reaonably oscilator that could be created following the SM Standards ) relativerly easy, but you should wait tomorrow for the schematic
Sorry guys i doubt taht could be usend on Spiral Oscillator,Although is posible that could be used in Feedback osc on the docs, and posibly in stefan-style Shaped oscs too (hearing stefan ? hard/soft Sync for Nildon !!!)
stefan ·
unkargherth wrote: Think i found an inmediate way to Add hard and/or softsync to standard oscilators ( in fact to any reaonably oscilator that could be created following the SM Standards ) relativerly easy, but you should wait tomorrow for the schematic
Sorry guys i doubt taht could be usend on Spiral Oscillator,Although is posible that could be used in Feedback osc on the docs, and posibly in stefan-style Shaped oscs too (hearing stefan ? hard/soft Sync for Nildon !!!)
Atm, I don't know how to reduce aliasing when using sync with the kind of oscillators I use. When using BLIT's, it's easy enough, but I can't really do that now 🙂
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