Feb 8, 2019
Thank you for your comment, I am very sorry to hear you're experiencing this issue, but I would love to help.
I have issued a useful video THROUGH THIS LINK which explains HDMI ARC also including some troubleshooting steps that you may find useful in this circumstance.
I would also suggest seeing if you have any luck using an optical connection to your TV opposed to HDMI.
I would also agree with What BrianJP has stated above and check the audio output settings within your TVs menu to see if this provides any improvements.
Let us know how you get on.
Tegan M - Community Support
Thanks for posting and updating us on this. I am very sorry to hear that your issue has returned.
Can you please let me know if the issue persists on both Optical as well as HDMI? Also does the issue occur across all sources?
I look forward to hearing back from you.