Internal delay of VPC1

Finally, today I got into my VPC1 with a signal analyzer. It was very interesting to find out if there is any internal delay between the activation of the third key sensor and the sending of MIDI data via USB.

And here is the result:

It can be seen that the delay is 2-3 milliseconds. On average. Once, even 0.5 milliseconds. Well, let it be if it was consistently the same. But it is unpredictably different. This makes it difficult to play. It seems to me that this is pretty bad.

Difficult to play? I don't know, but wouldn't the usb signal normally be buffered and 're-clocked' by the computer it was sent to?

marcos daniel wrote:

On the Kawai MP11, there is an added delay for softer notes (to simulate the flying time of the hammer). I don't know the figures, but the idea is that extra delay is zero for fff and the longest for ppp. I think it can be adjusted from the menu, but I use everything with default settings.

the parameter is called ‘hammer delay’ and varies from 1 to10 ms when it is set on ( f1 and A knob) default value is 1ms . I assume the internal sound when off is triggered before the key reaches keyboard bottom at very low velocities , so the delay allows adjustment to be in line with the values observed by askenfelt & Jansson and also Goebl in their studies .

Pianistically wrote:

marcos daniel wrote:

On the Kawai MP11, there is an added delay for softer notes (to simulate the flying time of the hammer). I don't know the figures, but the idea is that extra delay is zero for fff and the longest for ppp. I think it can be adjusted from the menu, but I use everything with default settings.

the parameter is called ‘hammer delay’ and varies from 1 to10 ms when it is set on ( f1 and A knob) default value is 1ms . I assume the internal sound when off is triggered before the key reaches keyboard bottom at very low velocities , so the delay allows adjustment to be in line with the values observed by askenfelt & Jansson and also Goebl in their studies .

Unfortunately, it seems the setting of the Kawai MP11 goes the opposite way of the principle observed by Askenfelt & Jansson : it delays the sound compared to action when playing pp whereas it should delay the sound when playing ff.

So the option should be avoided.