Doepfer

DIETER DOEPFER:

> "I think the 200 Euros are a good guess for the
price
> of the filter. I think we will include in every case
> voltage controlled selection of the filter type and
> user defined selection of the filter sequence
> assigned to CV (e.g. 0...+5V divided into 32 steps).
> But there is one drop of bitterness: due to the
> design of the filter it is not possible to carry out
> a smooth "morphing" from one filter type to another
> as the filter parameters are switched (switching of
> resistors and capacitors). People who know the
> filter design will answer that one could replace the
> different resistor combinations by VCAs controlled
> by processor generated voltages. When these voltages
> pass through slew limiters one could obtain smooth
> morphing between those filter types that only differ
> in varying resistor settings. That's right but it
> would increase the price dramatically as the VCA
> amplification would have to match at least 1% for
> the same control voltage settings and for each VCA
> you need a slew limiter and a DAC (digital to analog
> converter) controlled by the processor. And this
> would be possible only for those filter types that
> are based on resistor changes but not for those that
> require switching of capacitors."
 

 


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

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