I have an LG TV OLED C1 connected via HDMI ARC to my Sonos Beam, which has worked perfectly. Since recently purchasing a Humax PVR box, sometimes the audio will not play through the Sonos when the Humax box is in stand-by. If I try to turn the TV volume up or down, I get a ‘mute’ icon appear on the TV screen and no sound is emitted from the Sonos.
When I use the Beam app on my phone to try to fix the issue, it tells me that a device is interfering with the communication between the TV and the Beam. The only solution that seems to work is to remove the HDMI cable (that comes from the Humax) from the port in the TV, change the TV audio settings to ‘internal volume’, re-connect the Humax HDMI cable and then switch the TV audio back to ‘external device HDMI ARC’.
There must be a more straightforward fix. Any ideas, anyone?
Best answer by rattyView original