I've had my Roku TV for a year and a half. These past two weeks I noticed if the volume is above 30 the sound starts cutting out, every other second. This is consistent across all platforms, and video playback is perfectly fine. We do not use any additional stereo or HDMI systems, this issue is through the TV speakers. I've messed with the audio settings as per some of the articles on here and I've done a restart, no changes.