Doepfer

Yes I had this too. Do you have a keyboard with a mod wheel connected? The Dark Energy has a built in LFO (software) that is activated by the Mod wheel and connected to pitch.

Neil

Sent from my iPhone

> On 28 Jul 2015, at 23:51, alessandrogiurato@yahoo.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
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> Hi everyone!
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> I have a problem with Dark energy 2. When it works for various hours i listen a change of the sound. If i play a note don't listen a linear sound but variable, dirty sound and like LFO influenced. Naturally i have exclude all the parameters like LFO. 
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> It's a natural problem or can i solve it?
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> Thanks
> 
> Alessandro
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