> All I want for christmas is micro tuning :-)
>
> Here's a question: has anyone here succeeded in making the mcv4 or the
> a-190 respond properly to 'microtuned' midinotes where the original midi
> note-value is modified with a certain amound of pitch-bend to retune the
> note to a certain tuning
>
> I tried this with Tobybear Microtune (a vst midi plugin) and mcv4,
> a-190, a-111 and plan b model 15, but no satisfying results.

With the MCV4 that's not possible as it has 7 Bit resolition only but it
should work with the A-190 within it's limitations (12 bit resolution of the
DAC).

One problem is that the Midi pitch bend is not an absolute but relative
parameter. The Midi data range 0...127 may result in +/- one semitone, +/- a
quint, octave or whatwever. It depends upon the setting at the receiver. For
example the A-190 has a parameter named "bend width" that defines the effect
of Midi pitch bend to CV1 of the A-190 (page 16 of the user's manual). I'd
recommend to use a small value (+/- one semitone) to obtain a fine
resolution for micro tuning.
You could also assign pitch bend to CV2. Then you can adjust the scale for
the micro tuning (CV1 without pitch bend -> 1V/Oct CV input of a VCO, CV2 ->
CV input with attenuator). If several VCOs have to be controlled by the same
CV1/CV2 source the new precision adder A-185-2 can be used for this
application (will be available next week as well as the other modules of the
new series).

Best wishes
Dieter Doepfer