KD65XG7003 Sonos Beam audio sync issues

[wisemunch]

Hi Everyone,

I have a KD65XG7003 connected so Sonos Beam via HDMI 3 (ARC).

Unfortunately I am getting a loss of sync between audio and video - the audio often lags behind the video. The problem is most noticeable when using the Netflix app (which is what is used for the majority of the TV content). Testing digital TV (Virgin TiVo box), problem seems to be nowhere near as bad a Netflix (maybe even in sync!). Doubt its a bandwidth issue as have ~100mb connection on internet. Anyone else having similar issue? Perhaps it is the Netflix app and not the hardware? Would appreciate any help. Am also experiencing very short cut-off in sound altogether (<1 second). Problem seems to be limited to using Netflix app. TV is also connected to PS4 and have no issues, so am thinking it is an issue with the Netflix app. Tried factory reset and no improvement.

[Pascale_F]

Hi wisemunch, 

I'm just going to try to find some answers for you. In the meantime, maybe someone else in the community might have some ideas. 

Thanks,

Pascale

[Vanilla_]

Hi wisemunch, 

That's weird! Did you try to use another HDMI lead? You can also use an optical cable if possible to test.

Let us know if this makes any difference.

Vanilla_

[wisemunch]

Not tried the optical cable yet - plan to do so.

The HDMI is brand new out the box from the Sonos beam so I doubt it is faulty.

However, I have noticed some other weird issues which point towards the Netflix app.

I've also added 2x Sonos Play 1 units in a surround configuration (i.e. paired with the beam).

On series that support it, the Neflix 5.1 audio seems to be in sync with video (so problem seems more obvious when 5.1 not supported), but I get occasional very short complete cuts in sound when watching 5.1 Netflix shows.

The big kicker, I don't have any issues at all (sync or audio drop out) when watching films/games through the PS4 or when watching TV via the cable box! So I guess that rules out HDMI and suggests its the Netflix app or something to do with how the TV processes streamed audio.

I've also tried streaming audio to the Sonos system (spotify). While the lip sync issue isn't applicable, I don't get any audio total dropouts, so again suggest it is not fault in the audio system.

Need to test the optical cable but might not be easy as TV is wall mounted....

[wisemunch]

Did another test last night.

Watched an episode of a Netflix show I'd been having sync problems with, except this time I used the Netflix app running on my PS4 rather than the one built in to the KD65XG7003 set.

Through the ps4 Netflix app I had no issues - so I think the problem I am experiencing is most likely due to a bug/compatibility issue in the TV set (or the current version of Netflix that it operates)

[The_Black_Rose]

Hi Wisemunch,

Have you tried resetting the soundbar?

Cheers,
The_Black_Rose

[wisemunch]

Yes - multiple times. Was one of the first things I tried...

[The_Black_Rose]

Hi Wisemunch,

Do you have another TV to test it on? In order to know what's actually causing this issue.

Cheers,
The_Black_Rose

[wisemunch]

Sorry no alternative TV to check.

However I am very confident that it is something to do with the version of Netflix which the TV is running

• Audio via cable box (Virgin Media) has no issues
• Audio via PS4 (games/blu ray movies) has no issues
• Audio via Amazon Prime app (TV) has no issues
• Audio via Netflix (PS4 app) has no issues

Some examples of recent issues with TV Netflix app:

- Peaky Blinders has significant audio/visual sync

- Planet Earth documentary has frequent sounds drops i.e. sound completely cuts out for approx. half second.

The TV is running the latest firmware.

[3jamied]

I have the KD49XG7093 and have exactly the same issue and looking to fix it. TV works absolutely fine with every app every device other than the Netflix app on the tv. It’s to do with signal being translated slowly or something. Netflix need to update their app urgently