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Found 1 result

  1. Problem: PX-560 | CC doesn't provide smooth volume control when pedal is assigned to CC11:Expression I bought the M-Audio EX-P expression pedal. Calibrated and assigned it to CC 11 controller so I could control volume with my foot. I returned it back because it seemed to be causing a very noticeable volume jump just as the layer fades in. I was expecting the expression pedal to increase the volume smoothly, just like when you use the keyboard's master volume knob, but that's not what happened. Initially, the sound jumps from off to some low level; and it's definitely a jump and nothing like a fade in. As I further depress the pedal, it's not smooth at all in the first ~25-33% of travel. Once I'm past that first third of the travel, the pedal seems to operate smoothly. But it really kills anything subtle you're trying to do at lower volume levels. So I bought the Moog ACCEP003 EP3 expression pedal. Plugged it in; calibrated it, and same thing - volume jumping at initial fade-in and then along the first 25 - 33% of travel. Kind of like a detented pot, if you know what I mean by that. It's looking like my PX-560 is the problem. Now it could be just my keyboard, but I'm thinking that people just haven't noticed it yet because they're fading in a sound while another sound is already playing so the problem would be masked. That other sound could be coming from their own keyboard or their band mates' instruments. Either way, it probably wouldn't be noticeable. Took a while before I caught it. Anyway, I'm assuming this problem exists for all PX-560's. I'm guessing it's a firmware issue where the code/function that interprets and translates the pedal's variable resistance/impedance at its lowest levels is not granular enough to produce a smooth continuous controller response over the entire range of travel on the pedal. Maybe it's a problem having to do with the characteristics of the pedal's potentiometer, but I'm betting that routine could be written that notices when jump in db is about to happen and branch off to a subroutine that smooths out that volume level transition over time. You'd have to have to play with the timing so that is sounds natural/believable/reponsive, or as close to it as possible, but I bet could be done. Thoughts? Thanks!
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