The Grandeur

Selçuk

Hi everyone

I have been struggling with a persistent issue in my setup for several years, and I hope you may be able to help me find a solution.

My current setup consists of:
• Yamaha Clavinova CLP-645
• Native Instruments – The Grandeur (2019 app)
• Audio Interface: BEHRINGER UMC (Driver v4.38.0 – 20.02.2018)
• Audio-Technica M50xWH studio headphones
• High-performance PC (powerful hardware)
• Instrument connected to the PC through a UPS

The problem:
When I play directly on the virtual keyboard inside The Grandeur, the sound is full, warm and well-balanced — exactly as expected.
However, when I play through my Clavinova, the tone becomes noticeably different: less rich, sometimes too bright, and above the 5th octave even harsh or “screechy.”
Occasionally I can also hear a mechanical-like noise, which makes the playing experience quite unpleasant.

I have already tested different headphones and even bought a new pair (Audio-Technica M50xWH) yesterday, but the problem remains.
My PC hardware is powerful, so performance should not be the issue.

My suspicion:
The cause might be related to the Preferences settings — possibly velocity curves, touch sensitivity, or other configuration parameters.
Despite many attempts, I have never been able to achieve a consistent, satisfying result. At one point the entire audio stopped working, and I had to uninstall and reinstall everything to get it running again.

Could you please advise me on which settings I should check or adjust in order to achieve a tone that matches the quality I hear on the virtual keyboard?

Thank you very much in advance for your support.

Kind regards,
Selçuk Donat

Uwe303

Hello,

if you have tried different velocity curve setting in the clp-645 then this has no effect on the midi output according to the manual, have you tried to set the velocity curve on the "anatomy" setting to soft or softest, on this setting you can also set the noises to your liking. There is an arrow next to "anatomy" click it and you will see what i mean.

I guess the audio dropout is a different problem and it´s hard to tell without further investigation and/or details.