I have an LG UK6090PUA TV connected to a Gen 2 Beam, along with a Gen 3 Sub and two One SLs for surrounds. The setup sounds great for movies and TV and also for music played through the Sonos app. Music played through the TV, however, sounds downright awful. Like really, really bad — totally unlistenable, which is a real shame because I have a great music video collection that I would love to have playing in the background when hosting company.
I’ve downloaded a bunch of open-license music videos from the internet and extracted the audio for listening only, and I’ve got both the MOV video and MP3 audio versions in my media library. It’s the same exact audio stream for both the videos and the audio files (16-bit 44.1kHz stereo), and having the same audio stream in both formats provides a clear example of just how stark the contrast is.
A song played through the Sonos app on my phone sounds great, with all speakers playing at appropriate volume levels and the stereo signal split appropriately between left and right speakers. The same exact song played as a video on the TV sounds like garbage, with Sonos apparently trying to play the stereo signal in some kind of pseudo-surround mode. Sound from the Beam is muffled and the One SLs hardly make any sound at all. When grouping with other Sonos speakers in other rooms, they all have the same issue, creating an unpleasant soundscape that permeates the whole house. Definitely not suitable for parties!
Note that I have tried all the recommended tricks in the Sonos app, like disabling surround mode and all that. The Beam just seems hellbent on processing the HDMI signal from the TV in an overly complicated way instead of just handling 2-channel audio as 2-channel audio. I don’t watch much TV, but my wife says that some of her shows sound “off” with this system — which makes me wonder if all those shows happen to be broadcast in stereo.
Prior to splurging for this Sonos setup, I was using a JBL Bar 5.1 with this TV, and prior to that a cheap Visio soundbar/sub combo. Both worked much, much better with this TV for playing videos with 2-channel audio than my Sonos system, which is both frustrating and weird.
I don’t know if this is a problem with the TV, the Sonos, or both. Or perhaps the HDMI cable? Or the way the videos are encoded?
Has anyone found a way to fix this problem? Is anyone out there NOT having this problem?
Best answer by Jamie AView original