Yamaha smooth release conversion to classical note-off velocity in Logic 10

OlivierW

hi,

Here my soluce to convert N1X, P515, clavinova smooth release to note off velocity 🇦

here an example with Logic 10 and Pianoteq 8 🇦

The logic 10 script : (to change value for other Piano VST used with a Yamaha Piano with smooth release )

https://www.dropbox.com/scl/fo/4wpzemh52eik3fclvo871/h?dl=0&rlkey=a1wvblpcjf8hpcm4jvyrob31i

Regards,

Olivier F.

Frédéric L

Are you sure about the P515 which would need a translation ?

Its MIDI reference mentions velocity key off. And the polyphonic aftertouch is only sent if you load a song which have some (not the keyboard).

It is very different with the N1X which has optical flags under the keys and emits polyphonic aftertouch message to indicate the trajectory of the key when released.

OlivierW

Frédéric L You are Right 🙂 this apply only on N1X/N3X and some Clavinovas, but not the P515

Thanks 🙂

i will post improved script soon 🙂

johanibraaten

Frédéric L It is very different with the N1X which has optical flags under the keys and emits polyphonic aftertouch message to indicate the trajectory of the key when released.

I think the aftertouch messages that the avantgtands sends upon release actually are misinterpreted Disklavier XP massages that standard midi doesn't understand. If you switch midi dialect to Disklavier XP in Pianoteq these messages becomes "Damper position" messages which is more in line with the release behavior of the built in engine in avantgrand pianos.

Frédéric L

I am not sure about the other Clavinova. I guess they use usually designed keyboards (3 switches), and no analogic grayscale flag optical system.

But the reference MIDI implementation chart say polyphonic aftertouch can be send. Then I am puzzled.

OlivierW

johanibraaten But Pianoteq show Damper Position in XP dialect but do nothing 🙂 that's why i make this script and curve for Pianoteq 8, and then the smooth release work now.

Frédéric L

I guess that the script records the damper position and when it pass a threshold divides the difference of position by the elapsed time between the two position, and it generates a Note Off (or register the Note Off velocity for the next Note Off).

Such a division could be imprecise, perhaps should we take the evolution between two non-consecutive damper-position.

Is this the used algorithm? Or should I know something else? It could be interesting to port it in a Reaper ReaJS script.

OlivierW

More simple : N1X send Aftertouch and damper position only if you only release slowly key. (more advanced than note off continous velocity in Roland). So my script convert just the advanced behaviour of N1X sensor. Just have to calibrate the Pianoteq note off curve to have the same result than internal sound of N1X via MIDI. (By ear and compare)

Frédéric L

What are the details of the conversion ?

OlivierW

Frédéric L Just try in Logic 10 and mac, the example file i've uploaded

Frédéric L

With no Mac, nor Logic, it would be difficult to proceed.