Sound breaking with VO on my device

Hi,
I will explain my bugs with detail, also what device I am using.
So, the problem I have is VO and the sound on my iPad as well are breaking. What this means is that vo or the sound of what I listen to pauses, then resumes, but in a lower volume. Then eventually, it pauses again and blasts out of the speakers. I am trying to prevent this from happening by resetting and rebooting my device, but it just keeps coming back.
What should I do?
My device is an iPad Mini running 9.3.1.