I would like to achieve a more realistic celeste pedal.

Here is an example alternating Pianoteq's U4 with celeste pedal on and my acoustic upright U1 (it's out of tune but you'll be able to hear the timbre differences) :

https://youtu.be/LokU4Qu-feI

Pianoteq's U4 sounds brighter, so I guess a little bit of EQ tweaking should do it. But In the higher register, what should be done to get the inharmonic sounds ?

Kreso