Nvidia shield pro 2019 with passthrough => audio out of sync

I cannot watch my movies with a Nvidia Shield Pro 2019 using passthrough.
Audio is completely out of sync.

My setup:
Nvidia Shield 2019 + Plex with passthrough enable -> HDMI -> TV -> HDMI ARC -> Sonos Beam
If I disable passthrough, there is no issue but my Beam receives stereo sound

If I remove Nvidia Shield, it works fine.
TV + Plex with passthrough enable -> HDMI ARC -> Sonos Beam

I don’t know if it’s a Nvidia issue or a Plex issue but it makes my Shield unusable.

Thank you

I am having an audio Sync issue as well with my Shield 2019 pro in Plex. Are you on hotfix 4, or official release software for the Shield? Does audio passthrough work with Plex for Kodi? Kodi seems to pass the audio normally for me so I’m not sure what the cause is.

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8.1.0 official release.
I just tried Plex with Kodi yesterday, same audio delay happens, with passthrough enabled in Kodi. The result of disabling passthrough in Kodi is a stereo sound instead of DD 5.1.
On an other forum, someone reported to me that he has also audio sync issue using an old shield with 8.0.1.

That’s so weird. I was hoping there may be a common theme, but we must be having the same issue with different causes. Thanks for getting back to me.

@brockrohl where is located your audio system? Just after the shield? Or after your TV like my mentioned setup above? (Shield > TV > Sound system or Shield > Sound system > TV?)
I really hope there is no issue if the sound system is placed just after Shield but I’m not sure at all.

I’m not using arc. I go shield to AVR to TV

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Resolved for me buying a new soundbar which can be placed between the shield and my TV. There is no audio delay anymore using passthrough.

Do you have the sound settings set to automatic in the audio settings? 45/5000

If not, you will need to download the hotfix from nvidia.

It’s fixed.
I bought a HW-Q90R and I do not have audio delay anymore with passthrough enabled.
New setup:
Nvidia Shield & Plex > HDMI > Soundbar > HDMI > TV

It works perfectly now so don’t buy a Sonos Beam which has only HDMI IN

where can I download that hot fix? Where is the sound settings?

There is already a public version 8.1.1. What kind of problems do you have?

audio out of sync using plex , when i use another player like vlc works fine

Try the old Player or Beta 7.31. See this Thread:

where can i download an older or a beta version?

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I managed to get rid of audio sync problems by disabling the HDMI Lip Sync option on my amp and set the delay manually.

This was a while ago though and not caused by a recent update but might be an option to try.

thanks puzzled… So you continue the delay manually configured in your Amp? My projector has a VLC app and works fine… This is clearly a nvidia shield issue…:frowning: thats baad!!

Mine may have been a different issue but when I turned off the auto lip sync feature and just left it on a manually set delay (40ms i think) then the lip sync issues pretty much went away. I’ve got the 2015 shield pro which is still on the older software as I heard about issues with audio passthrough dropping out. Will need to update soon though as Netflix and Disney+ has stopped working.

Correct lip sync can be a nuisance in general tbh as different equipment and even content at different refresh rates can affect the delay and once you notice the issue its really hard not to notice it. Do you only get the audio sync problem in Plex or do you notice it on any other video (Youtube, Netflix, Prime etc)?

I don’t know if the Sonos beam has an adjustable delay, if not you might find it in the TV settings for HDMI ARC.

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