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Doepfer

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Re: [Doepfer_a100] Re: pitch problems using a171 vc slew limiter

2002-10-25 by bakis Sirros

jumper?
i remember having to cut two metal links to stop the
a190 sending cv and gates to the system bus.
bakis.



--- Joe Buechler <buechlerjoe@toadmail.com> wrote:
> I removed the jumper to break the connection from my
> A190 to the 
> bus, and patch the A190, or the A156, or whatever,
> to the A185 
> instead.
> 
> Hope that helps.
> 
> Joe
> --- In Doepfer_a100@y..., "duffnuff" <duffnuff@h...>
> wrote:
> > hmm, ok.  thanks for the suggestion but i'm
> confused as to how i 
> > would patch it in.  does it work just being on the
> bus?  so i start 
> > drawing cv from the 185 instead of the 190?  
> > -duff
> > 
> > 
> > --- In Doepfer_a100@y..., "Joe Buechler"
> <buechlerjoe@t...> 
> > wrote:
> > > 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
> 
> 


=====
synthfreak(parallel worlds)
athens-greece
[Doepfer_a100] group owner-moderator

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