From yahoo Sent Mon, Jan 11th 2016, 08:27
From yahoo Sent Mon, Jan 11th 2016, 08:27
> just a quick question that doesn't really require an answer i suppose :-)
>
> (and multitudinous apologies if i'm being senile and asked this before and am just forgetting... i think i might have a
> while back... hrm, gettin' old i suppose... is today a... uh, what day is it?...)
>
> why was the Dark Energy set up to only have a midi note range of C2-C7? was that a limitation of the original v1
> Curtis-chip-based design, or a general firmware decision (which means i should probably ask Matthias or Christian instead
> of Dieter)? a requirement of the usb protocol? problems with accurate pitch tracking that low? or "just because"?
>
> i have both a v1 & v2, and having an extra midi octave down (C1-C2) would be a help - especially with the v1, which i'm
> sequencing from the cv out of a TT-303 clone, and even with the DE1 oscillator set to -1 it's still an octave up from the
> 303 (and using the 303 front panel transpose also transposes the DE). i could do some kind of extra-convoluted stuff with
> midi proccessing or a cv offset module, but i'm trying to keep things simple (heh...). the 303 clone doesn't do incoming
> midi note transpose but the DE does of course, so being able to transpose from a keyboard but still have it in the same
> octave as the 303 would be a plus. but hey, arbitrary limitations are good for creativity!
>
> i was just curious if there was a specific technical reason.
>
> and again my sincere apologies if i asked this before already... i tried sifting through the group archive to see, but
> didn't find anything.
> but i kinda think i did... it really seems familiar... gotta start taking notes... or maybe printing out some choice
> answers from the group...
>
> -chris
The midi note range is not fixed to C2-C7 because you may assign any midi reference note to the Dark Energy. The reference note is
the lowest note that is expected from the midi transmitter. In the factory the Dark Energy is adjusted that this midi note
corresponds to ~65Hz (octave switch and tune control in center position) which corresponds to C2. With the octave switch down it's ~
32.5Hz which corresponds to C2. If you want a lower pitch you may adjust the internal frequency offset trimming potentiometer
(details in the technical document on our website).
Best wishes
Dieter Doepfer
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