Beam Gen 2 metallic/robotic out of phase issue

What model TV are you using?

I’d start with a diagnostic and call to Sonos support to make sure the system internals are good.

Whenever I’ve seen this issue mentioned, albeit rarely, the user seems to have sorted the issue by either changing their TV, or adding surround speakers and/or Sub to their setup. So maybe give either of those things a try.

My TV is a Sony X900H (XH9005). I have seen others reporting the issue with this model. However there are people reporting the same problem occurring across various brands and TV models.

The problem is only present on audio played via the HDMI cable. Audio sent directly to the device over WiFi does not have this issue.

I've read that some people find the solution by using additional speakers, but that's not a viable option for me.

you are not alone in this, i am having the same problem and its making me mad. i have a tcl tv with the beem gen 2 and the sub mini  

I see you only joined the Sonos community here today - if you have not spoken to Sonos customer support, then perhaps see my post above yours.

I am really glad to see I am not the only one expericing this. To be honest, I am somewhat disapointed by Sonos support performance here - so please excuse my ranting below ;).

And for the records, I have gone through all the debugging shebang with Sonos myself. Incl. receiving an exchange unit, reset system to defaults, change cables and TV … yadda yadda.

This problem is clearly noticable, esp. in scenes with crowd noise, as jonerikj outlined, for me, even more noticable with “Nightsound” enabled. I am pretty sure it will also be measureable as really poork THD.

Also, for me it is pretty clear the distortion is coming from the sidewards pointing speakers.

@jonerikj : is this the same for you?

Unfortunately, Sonos support never made any effort to reproduce themselves, which IMO is the core of the problem with SONOS support. Support seems to be set up to work on a more or less theoretical basis, working with SOP, stepping customers through the regular debugging activities that solve 80% of the issues… ignoring the fact that there are bugs that are not a) solved by reboot/reset and also are not b) production problems/defects. Sonos, I believe you need a (larger?) team of “lab” people to reproduce real bugs, i.e. c) issues that are “per design” and not one-off or customer misuse. Just my two cents.

As I mentioned earlier in the thread, it’s not an issue that anyone here in the Sonos user community can resolve, but for the ‘very few’ that seem to notice this issue with their particular brand/model of TV, most have gone onto say that adding surrounds and/or Sub to their Sonos HT main device did solve it for them. So if not tried already, you could perhaps consider that, particularly as Sonos offer a 45 day money back guarantee, if the surrounds are purchased direct - so it’s perhaps something you might want to try. It will certainly change the Soundbars sound profile if you do add surrounds etc. Nothing ventured… of course if it doesn’t work then sell the lot, or return whatever you can …and try something else instead.

@KiPe, the sound seems to come from both left and right sides.

It's less noticeable when I set my Sony TV to 'Always output in PCM' under Digital audio out settings, but then I lose Dolby Atmos and similar features.