Hello Ott,

So you have the Korg MS20 legacy controller - and so do I. Bargain on ebay, used but "as new". In facts reading you own it gave me even more confidence to get it. Didn't think it would be that good and that 1:1 as using the actual synth ("usuability" wise). But you know what isn't 1:1? The knobs. Each single knob fom the hardware does nothing from a 0 to 1 value on the cutoff frequency knobs for example. Also nothing from 9 to 10. At 9, it reaches the 10 in the software. At 1, it's already zero. It's not scaled up properly. And it's exactly the same for each single knob. The pitch in the second oscillator is completely effed up. I reckon it's not the HUGEST problem as I would have to work with my ears anyway, but I was wondering if yours does the same. Don't have other people that I know who have it and can tell me. I'm asking over the internet. Does yours do the same? If I could fix it I would. It's sort of silly.

Ott responded on 12/02/2013

Because midi [with the exception of NRPN values] is limited to 128 discrete values per parameter, the action of any midi controller knob is of a fairly low resolution. It is common for midi controllers to generate 'zipper noise' as they step up and down the 128 values and this is no less apparent on the MS-20 controller.

If there were no buffer at either end of the knob's travel, as the unit got older and the encoder became worn, there could arise a situation where the knob sits between value 0 and 1, or 126 and 127 and spits out each value alternately as the encoder value fluctuates. I have an old M-Audio Oxygen 8 which does this and it is infuriating.

You have to remember that the Legacy controller is not a Korg MS-20 - it's a dumb midi controller, with all of the flaws inherent to that protocol. If you want a real MS-20 with smooth knobs you'll need to shell out £1800 for an original or £500 for a Mini.

Or pay less attention to its limitations and accept it for what it is.

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