Doepfer

--- In Doepfer_a100@yahoogroups.com, "nicholas_kent" 
<nicholas_kent@...> wrote:
>
> So far I've just played with it by ear. 
> 
> But I'm curious if anyone has already worked out tables or a 
formula to center any one of the 
> BP filters on a particular Hz. frequency.  
> 
> I was kind of annoyed the that doc for the A-127 reprints a table 
from the Allen Strange book 
> but doesn't list any approximate VCF Freq. knob settings nor 
voltage amounts to set the filter 
> to those frequencies.


hello nicolas,

it's a bit difficult to determine the exact knob settings,
as these can slightly differ from module to module.
the simplest way is to hook up a spectrum analyser
and doing a measurement. those formant frequencies are
approximations anyway, you don't have to hit the exact
frequencies to get good results. the table in the
manual should be understood as a hint for own experiments.
maybe i can do some measurements for you during the next
days, i'll post the approximate knob settings then.

best wishes

ingo