johanibraaten
David Lai However, I do have to say that word has it that the pianos before the N1X has some midi inconsistencies. I've certainly experienced bad time on my NU1 in China. Could it pedaling is another one of those?
I have an N1 which should have about the same MIDI behavior as the N3. I wouldn't say that the MIDI response is inconsistent but rather consistent and even (although it's possible that there are unit variations). It has a few naggles though that could be good to know about. The pedal sends continuous data from 1 to about 80 and then it jumps straight to 127. It also doesn't support the standard MIDI message for silent key press (Note on 1) so it's not possible to play harmonics over silent keypress in standard MIDI. Instead the N1 sends data about damper position in the Disklavier XP format where the value for silent keypress is "Damper position 127". It also sends data about damper position if you release the key slowly as the "string" is slowly dampened. However the standard MIDI dialect doesn't understand damper position data so it interprets it as "aftertouch".
The N1 also require slightly more force to reach a certain velocity in the lower part of the keyboard than in the higher regions due to the different weight/inertia of the keyboard. I think this behavior is normal though due to the nature of the acoustic action and when I've tried the N1X it showed a similar behaviour. It's also really hard to reach the highest velocity levels on the N1.
The NU1 could be another story though as it lacks hammer sensors and relying on key sensors only.