I’m having the exact same issue. I have a Roku Ultra. This started about a month ago. I either lose sound completely or it makes this weird glitching sound like I’m hearing tiny snippets rapid fire. The only way to fix it is to restart the whole device. It’s annoying as heck.
Thanks for the post.
Does this issue occur on a specific channel or does this happen regardless of what channel you are using?
Have you tried using another HDMI port on your TV or switching out the HDMI cable used to connect your device to see if that resolves the issue you are experiencing?
With more information we will be able to assist you further.
Thanks,
Danny