Roku Streambar audio volume fluctuations—Crackle Sound on Xfinity Stream App

To answer the next incoming questions from support:

To answer your questions

• When did you first notice this happening? - I first noticed this November 2024 at the installation of my first Roku Streambar.   This issue appears to be first reported to be prevalent on both Reddit and Xfinity forums in November 2022.  A link to those forum posts here: https://forums.xfinity.com/conversations/xfinity-stream-website/fluctuating-volume/637abdbdbff9a5603...
  
  
• Is it happening on other channels or just on the Xfinity Stream App? - This issue is confirmed on Roku Streambar and can be easily replicated.  The issue is specific only to the Xfinity stream app.  I cannot replicate this issue with the Xfinity Stream App on a Roku Stream Stick or Stream Stick Ultra.
  
  
  
• What have you tried so far to fix it?  Factory Reset, Software Update, Restart device, restart app.  A workaround is available, but is suboptimal.  Press home button, relaunch app,  open the guide, find channel, click watch.  This workaround works for about 30 minutes.   Then the audio stream degrades.
  
  
• Does uninstalling / reinstalling the app to fix it?  I've completed the app removal / reinstall as requested and issues persist.

I have reported the issue to Xfinity as you have recommended and curiously they stated to get in contact with Roku support stating this is a "Roku issue, please ask support".  So unless if proof can be provided - which I have seen none - that this is an xfinity issue specifically, please do not pass off customers to another support org without a warm handoff from one org to another.  A 'good luck wish' is not appropriate.

This issue persists on multiple streambars.   The issue persist across three Roku firmware versions including the most recent as of 2/28/2025 which is 14.1.   Xfinity Stream app is 8.0 build 0.  Issue is also reported to Xfinity on thread 'roku-streambar-audio-fluctuations-70-reduction-in-volume-intermittent-short-bursts-of-loud-crackling-audio' and here is the link to it.  https://community.roku.com/t5/Discussions/Roku-Streambar-audio-fluctuations-70-reduction-in-volume-i...

All roku stream bars have been through the following and the issue persists:
Uninstall / Reinstall the Xfinity Stream app, issue persists.
Streambars have been been factory reset, issue persists.
HDMI cable replaced with known good (does alternatively provides reliable audio and video between computer and 4k monitor), issue persists.

Power supplies swapped between soundbars, issue persists.
While issue is occurring, connect to an alternate TV which is a different make and manufacturer and the issue persists.