Noise issue with direct TV stream

Sometimes while watching a show on direct tv stream the sound will distort or go loud or low. I have a lot of other streaming devices on my roku and it never does this. Only does it on direct tv stream only. Never had the issue before until I started using this streaming service. Have reset roku,  internet service is good and very strong.  I can go out of it to another show on direct tv and it stops then I can turn it back to the program I was watching and it's fine again. And might not do it again for hours.