Known issue with Xfinity Stream App / Roku external devices OS 11.5 Build 4312
Just wanted to make the community aware of an issue with the Comcast Xfinity Stream app and Roku external devices. Users started reporting an audio issue to Xfinity TV support in late October 2022. Basically, the sound will generally become very loud and distorted or alternatively very low. Exiting the Stream app and re-entering it clears the audio issue. The issue is not seen for me in any other apps on Roku including Netflix, Amazon Prime, etc.
I see the issue on a Roku streamer Wifi, Roku 4802R (ethernet), and a Roku stream bar 9102R (ethernet via USB 2.0 port dongle). All are running Roku OS 11.5. Streambar sees the issue about 3-4 times per day. It is at Build 4312-95. The problem appears to have started after the Xfinity Stream app update in late October.
Here is the support thread on Xfinity forums:
Stream App volume fluctuations (low to really loud) | Xfinity Community Forum
I'm posting this here in the hopes that Roku engineering can help Xfinity support determine the root cause and a resolution.
JimmyO