Doepfer

I had the same problem until I added the Bus Access module to 
buffer the pitch CV. Then the problem went away. Ditto for A156 - 
produced pitch CV.

Joe
--- In Doepfer_a100@y..., "duffnuff" <duffnuff@h...> wrote:
> i'm having problems performing simple portamento using the 
> a171 vc slew limiter.   when i apply the a171 slew limiter to pitch 
> cv it results in serious intonation problems.  i went back and 
> checked the a190's scale adjustment w just the a190 and an 
> oscillator, checking across 4 octaves w a tuner, it's fine.
> 
> seems my a171 will not pass cv cleanly regardless of slope.  it 
> causes portamento, will adjust from slow to fast, but notes are 
> wrong.
> 
> when i patch the a190's cv1 output to the a171, then to the osc, 
> middle C drops 1/4 step, and intonation goes completely out of 
> whack.  this occurs even when using only one osc.  very 
> frustrating.  completely unusable.  that's w no slew applied.  i 
> also taped the middle C key down and left it for several minutes 
> but no change in pitch during that period.
> 
> could this possibly have anything to do w using non-doepfer 
> osc's?  i recall having to alter the scaling of the a190 when i 
> began using it w a pair of ASys rs95's.  once the scaling was 
> adjusted they played perfectly together, except now when the 171 
> intercepts the pitch cv, then the a190's scaling wants to be 
> adjusted back down to doepfer's default position.  
> 
> any thoughts?  is there a bias adjustment i don't know about 
> within the 171?  
> -duff