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Slightly noisy gate inputs?

So I was using the gate ins to control the volume of a signal. Gate one sounded fine but gate 2,3, and 4 were all a bit scratchy. I thought it was what I was using to provide the control but I tried multiple sources and it doesn’t happen on gate 1.

Anyone have this happen to them? This is my first time experiencing this but I also usually use the gate inputs to trigger things so it could have gone unnoticed.

Totally normal. Each of those inputs will have a slightly different offset that puts one or another input closer or further from the threshold between two 12-bit values. Use filtering such as a dead band to get rid of the quantization noise.

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