I had the same experience with all of my ACPRs, actually, and determined that it was helpful to 'buffer' the pitch CV by putting it through the INV section of the ACPR first. It took me awhile to narrow it down to the ACPR, though, as I thought it involved the PDIV and BLOG, but Rex said it's basically normal and suggested the 'fix' I just mentioned.
Thanks for continuing the discussion. I can't recall if I've tried your particular technique. I'll patch it up today...
Matt
On Tue, Jun 17, 2008 at 9:17 AM, johnrichoux <jrichoux@...> wrote:
Hi Matt
I was interested in this question and finally got around to testing it myself. I found that I
can make a 16 step sequence out of the 8x2 by simply applying the same clock (DTG gate)
to both the SEQ and the ACPR. With each pulse, it switches from A to B, then the SEQ
advances one stage. The DTG gate has to be as square as you can get it. (Wish I had a VC
Clock module)
However, using this method to control pitch, I get a significant warble. It is less noticeable
using the method suggested earlier, as the crossfade happens only once, but with this
method it happens 8 times. I have the ACPR set full left. Even when the SEQ is preset to
the last stage, and both A & B are set to zero, there is a distinct pitch shift.
The warble is even more pronounced when I run the clock thru the PDIV. The greater the
division, more warble.
I have run into similar pitch accuracy problems with the ACPR before. I have ACPR's on
another panel, I should test with those.
Thanks for raising the question
John Richoux