I have had this problem since I purchased the Sonos Arc about a month ago and it is getting very frustrating.
I have a TCL 75C727 TV with the Sonos Arc connected in the eArc HDMI port and stream everything through an Nvidia Shield TV Pro. The TV is set to passthrough audio.
When I first start up everything the Sonos Arc is outputting the correct audio formats.
For Disney+ the app will show Dolby Atmos and Dolby Digital Plus 5.1 correctly depending on media.
For Netflix it is Dolby Digital Plus 5.1 and for Youtube it is Stereo PCM.
However once I turn off the Nvidia Shield and TV and turn everything on in a few minutes the only format that works correctly is the Dolby Atmos. All the other formats show up as either Dolby Multichannel PCM 5.1 or Dolby Multichannel PCM 2.0.
I have tried powering down the TV and the Shield but the problem only resolves when I power down the Sonos Arc and restart it and then the audio formats are correct again, until the next time I want to watch something.
Has anyone else had this issue with their setup and how did you resolve it.
Best answer by GCGQLD
View original