Problem with sound. Please help.

Hello, guys!
After approximately two months of using AH (mk1) there were problems with sound. Sound randomly goes wrong regardless of settings. Only restarting the device helps but for a short time. Sorry I can’t attach file because I’m new user, so you can download video of problem here - https://ufile.io/edkhcfgh
I will be very grateful for the help! And sorry for my English