iPad speakers sounding weird

Sometimes when im watching Netflix i hear a low popping noise and my iPad speakers start to sound a little muffled or kinda low-pitched. I always rewind to where this happened to check if its something with the content but the speaker just keeps sounding muffled/low-pitched. I can usually fix this by restarting my iPad or by running an shortcut called water eject. The thing i’m a little concerned about is if when i have restarted my iPad and go back watching my content that the speaker still sounds a little worse than it did before but i don’t notice it. I don’t know if there is something wrong with the netflix app or if it has something to do with iOS or the hardware. Is anybody else having this issue?