Recording volume suddenly decreases (SOLVED)

I’m recording different instruments from a wind orchestra. When holding a specific note for more than approximately 1.5 seconds, the recording volume automatically reduces to a minimum level. Which is not what I want of course.
How come? Which setting to adapt?

Regards,

Geert

Make sure Windows [u]“enhancements”[/u] are turned OFF.

Thank you so much. That did the tric.

Regards,

Geert