Quality of Musik played in a Zoom Meeting with IPAD Air from 2024

Dear all and dear Support,

Since mid of year 2024 I replaced a IPAD 2 against a IPAD Air (2024).

In any Zoom Meeting, where Music is played, for example from a presented MS Power Point Presentation, the sound starts for 1-2 sec. ok, but then the sound quality switches to a reduced quality and the loudness is like modulated and it fluctuates between loud and quiet. Once the IPAD Air has been replaced against a new one (guarantee). But the effect remains the same.

Does any one have similar experiences ? Or exist a solution for this issue?

Thanks a lot for any recommendations. J