Audio Lag on 4k with xbox

Chief Wiggum · 20 Nov 2016 at 13:59

Hi All,

I'm not sure of anyone else has run into this (I'm probably missing something obvious!)

I replaced an aging Samsung LCD with a Sony Bravia 55x90C yesterday and I've got it connected as follows:
Xbox One S > TV (HDMI2) > Optical to Sonos sound bar

Now when in Apps like Amazon prime or watching a Blu-ray the lipsync is out massively from the xbox (audio is delayed). When I took the Sonos out of the equation and went back to the TV it was better, then I swapped out the HDMI cable between the xbox to the TV and that improved things further. However returning the optical out to the Sonos resulted in massive audio lag again. I can cure it by routing the optical directly from the xbox to the sonos, so it looks like the TV is adding some overhead (or is slowing the picture down?).

Has anyone come across this before and how did you solve it? It's driving me mad!

Thanks

gareth170 · 20 Nov 2016 at 14:56

sometimes putting the tv in game mode fixes the audio lag or if you have a audio delay setting on your tv or Sonos sound bar try upping it afew ms

Chief Wiggum · 20 Nov 2016 at 16:02

Thanks I'll give game mode a try, but the audio is behind the picture, so adding delay to the audio will only make it worse. I.e. Lips start moving, then you get the voice. It's like watching a dubbed film.

gareth170 · 20 Nov 2016 at 16:39

game mode should work or improve it a lot

going by my setup if i leave everything on default i get a slight delay. i either put tv in game mode or up the audio delay setting on my AVR.

signs · 20 Nov 2016 at 17:59

I wouldn't recommend game mode for normal TVs viewing

gareth170 · 20 Nov 2016 at 18:55

signs said:
I wouldn't recommend game mode for normal TVs viewing

depends on tv really...

on my tv it don't do anything to the picture quality, it just lowers the input lag a lot and fully disable natural motion (which i disable already)

signs · 20 Nov 2016 at 19:12

It abouts shuts down everything on my TV , or what's the point in having it ?

gareth170 · 20 Nov 2016 at 19:33

signs said:
It abouts shuts down everything on my TV , or what's the point in having it ?

as i said it depends on the tv really and way the tv processes the image.

on some tvs it disables most every picture settings etc. where on other tvs it only disables one setting such as natural motion and still able to all the picture settings and still enjoy low input lag.

Chief Wiggum · 20 Nov 2016 at 21:38

ok, so I've been doing a bit more testing (must to the annoyance of my good lady), but I've narrowed it down - the delay seems to be coming from the xbox itself when it's doing the Dolby 5.1 / output both via optical and HDMI. If I turn it to Stereo (uncompressed) then everything is matched up. However that rather defeats the point of having a 5.1 soundbar system (arrghhh)

Edit - just checked the Sonos and that says that the input is 5.1 - is the TV upmixing?! :confused: