--- In Doepfer_a100@yahoogroups.com , Florian Anwander wrote:

>
> Hello
>
> it is difficult to judge for us. Maybe you should post record an example
> on soundcloud so we can tell you whether it is normal or not.
>
> Record first the filteroutput with a simple sawtooth and then (without
> changing the level) the filter-noise without any input signal.
>
> Florian
>
>
> On 13.02.13 19:58 , isoldeandisobelle wrote:
> >
> >
> > --- In Doepfer_a100@yahoogroups.com , "isoldeandisobelle" wrote:
> >>
> >> Hi,
> >>
> >> If I take the output (without any input)from my A-107 and feed it into my A-138B mixer, a constant noise can be heard, like the sound of a noise generator,this is louder on some filter presets than others.
> >> If this signal is fed through a VCA, then the sound is, as to be expected, much louder....the sound is also there when the filter is receiving a sound source.....any suggestions, please.
> >>
> >>
> >> Kind regards
> >>
> > Hi,
> >
> > Any help with this
> >
> > I had already returned this module to my place of purchase, who passed it on to Doepfer, as it was producing the same ''noise'' sound but also was faulty in that every filter was not operating correctly, and was kindly replaced once tested.
> >
> > Thank you
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>

Hi,

Thank you for your reply.

Here is the soundcloud link - https://soundcloud.com/isolde-and-isobelle/a-107

First with a sawtooth and then just the filter out as I turn through the filter presets....it is also more noticeable with something like a sine.

Best wishes