So I was goofing around and taking some LPF cutoff frequency measurements for some of my soft synths and I gotta ask, why do the u-he synths (at least Diva and TyrellN6) go from 30 to 150? Seems kindof arbitrary -- some sort of decision during Zebra's development I guess?
Anyway here's a fun chart for the nerdy. All of Diva and Tyrell's frequency curves are the same (I mapped the 30-150 to the 0-1 scale Logic X uses for most synths), and as I've heard before yes, the Juno 60 apparently really is that weird.
What's with the 30-150 cutoff knobs?
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- KVRAF
- 24455 posts since 7 Jan, 2009 from Croatia
I think that's the value in MIDI notes.
That makes sense. Clever. Thanks 
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- KVRAF
- 1617 posts since 11 Dec, 2008 from Minneapolis
I think all other u-he synths are 0-150 also, heh ... I forget if 0 = 0hz or how negative cutoff values work, but the 30 value seems like a design tweak especially for the most virtually analog knobs.
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- KVRAF
- 24455 posts since 7 Jan, 2009 from Croatia
If a cutoff value is negative, then it's an offset from the main cutoff value (XMF in Zebra, for example).
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- KVRian
- Topic Starter
- 950 posts since 25 Sep, 2014
Looking again, it looks like it's actually shifted down an octave. A4 for instance is MIDI 69, but setting the cutoff to 69.0 gives a freq of around 220Hz instead of 440.
Now to tackle envelope values. Or more likely not bother cuz ugh what a slog.
Now to tackle envelope values. Or more likely not bother cuz ugh what a slog.