[sdiy] This OB-8 is sending me up the wall

[jhaible]

Tony -

this may sound stupid, because you certainly know it, but anyway:
Are you sure that you don't have an intervall *programmed* for
the upper and lower part of the split?
I don't remember the details (it's in the manual), but holding
some buttons and pressing a key at the same time can program
a transpose function into your Split patch. This should be
an integer value of semitones, but of course it could be
combined with a programmed detuning ...

Just an idea

JH.


-----Ursprüngliche Nachricht-----
Von: Tony Allgood <oakley at techrepairs.freeserve.co.uk>
An: synth-diy <synth-diy at dropmix.xs4all.nl>
Gesendet: Mittwoch, 2. April 2003 19:04
Betreff: [sdiy] This OB-8 is sending me up the wall


> A cry of help from one tech who's about to throw this synth out of the
> window. I have finally sorted out the majority of weird and wonderful
> things that were wrong with it, but I have one last fault I am
> completely stuck with.
>
> It all plays perfectly, but for one thing: In dual or split mode, the
> upper and lower voices play out of tune with each other. They each play
> in tune with themselves, but are around 3/4 semitone out with each
> other. In normal full mode, both upper and lower voice sets track
> perfectly, and there is no discernible differences in the two.
>
> The fault lies within the controller hardware and software. The keyboard
> pitch CV lines take a jump up for the upper voices, and a jump down for
> the lower voices the moment the dual or split mode buttons are pressed.
> They instantly hop back again when the switches are pressed again.
>
> The other pitch control lines (scale and tune offset) are not affected
> by the mode change.
>
> Any ideas? Any help would be most appreciated.
>
> Many thanks,
>
> Tony Allgood                       Penrith, Cumbria, England
>
> Oakley Sound Systems                     www.oakleysound.com
> Modular Synthesisers        www.oakleysound.com/projects.htm
>
>
>