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Re: [Doepfer_a100] some questions for florian...

2002-01-21 by Florian Anwander

Hi Bakis 

> can you explain more the term"phase locked loop
> osc."??,
A phase locked loop is a cicuit which multiplies a frequency. It is the
opposit to the divider A-115.
 

> also,what do you mean by"vca for cv
> signals??we already have the a130's for this...
No all Doepfer VCAs are for AC not for DC.

Here a simple example:
Take the Keyboard Voltage, feed it through the A130 to the CV-IN of a VCO,
which is not connected directly to the Keyboard Voltage. The GAIN-Knob
should now control the scaling of the Keybopard voltage to the VCO after a
change of the key (lets say one octave). Indeed you will find, that the VCO
jumps up a littlebit and sink down back to the note that corresponds to 0
V. This is because of the DC-offsetting capacitor in the signal chain of
the A13x. I want a VCA, whcih does no DC-offset or -at least - has a switch
to select between with or without DC-offset.

Florian
-- 
Florian Anwander                  |ConSol*  HP-Support
Tel.   +49.89.45841-133           |Consulting&Solutions Software GmbH
Fax    +49.89.45841-139           |Franziskanerstr. 38, D-81669 München
email: florian.anwander@consol.de |http://www.consol.de

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