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Doepfer

Index last updated: 2026-04-29 00:15 UTC

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Re: [Doepfer_a100] Linear fm modulation amount...

2001-12-04 by bakis Sirros

hi,
thanks,but i think that when i connected the output of
the a155 to the lin.fm input of the a111 i heard
audible results(thought,they sounded like pitch
slides...)
as you explained ,the dc signals do not pass
thru,so,how did i hear these pitch slides?shouldn't i
hear nothing??
synthfreak

--- Florian Anwander <Florian.Anwander@consol.de>
wrote:
> Hi bakis 
> 
> > ...dc decoupled...????please explain...
> 
> If you have the schematics of the VCO-110 you will
> find a capacitor inline
> in the Linear FM Input. Something like that:
> 
>                     capacitor
>                    /
> Input jack o------||---+-----to linear mod In of CEM
> 3340
>                        |
>                        |
>                        -
>                       | |
>                       | | <...Resistor
>                       | |
>                        -
>                        |
>                        |
>                       Ground
>                        
> 
> 
> This capacitor will let through AC but will stop DC.
> This is necessary,
> since a possible DC-offset of a modulation signal
> would detune the VCO
> instead of adding only a fast vibrato. Your
> Sequencer sends out only DC...
> 
> 
> Florian  
> -- 
> Florian Anwander                  |ConSol* 
> HP-Support
> Tel.   +49.89.45841-133          
> |Consulting&Solutions Software GmbH
> Fax    +49.89.45841-139           |Franziskanerstr.
> 38, D-81669 M�nchen
> email: florian.anwander@consol.de
> |http://www.consol.de
> 


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

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