topic Re: Chromecast on Google TV audio sync issues in Streaming

Chromecast on Google TV audio sync issues

mimo — Wed, 10 Nov 2021 09:31:07 GMT

Hi Nest support,

I´m working for a tv boardcast company, and we have been getting reports from our customers that audio is getting out of sync when casting on Android TV boxs and Google TV devices.

I have been able to reproduce as well on a.

Fully updated Google TV

with Chromecast firmware 1.56.500000

Video of the issue can be seen here https://drive.google.com/file/d/1tnspfXny-GUdTmap6IPADeuuRg53bh7t/view

The language is danish, but i hope you are able to see / hear the issue.

With regards,

Morten

Re: Chromecast on Google TV audio sync issues

djtetei — Wed, 10 Nov 2021 10:53:36 GMT

If you have your own channel application that must be installed on a Google TV device or box, first, you might have to check your application for some bugs.

Other applications that run on Google TV system do not experience audio-video synchronisation issues, so, probably, the issue resided on your part.

Furthermore, are you shure that the source material audio and video streams are multiplexed (muxed) correctly?

Re: Chromecast on Google TV audio sync issues

mimo — Wed, 10 Nov 2021 13:08:13 GMT

Hi Djetetei

Thank you for getting back to me.

We do not yet have an dedicated app for the Google TV so it uses the fallback receiver app. It works fine on other dedicated Chromecast devices, which talks to it being an issue with the Chromecast built-in app.

The version of the Chromecast built-app is 1.56.275391

Our DASH streams are also used for playback in web application without any issues. We only see the audio desync issue when casting to a Android TV being an NVIDIA Shield or a Google TV

Re: Chromecast on Google TV audio sync issues

mimo — Thu, 11 Nov 2021 07:51:24 GMT

Hi Djtetei,

We do not have a dedicated app for Google TV so it uses our receiver app as a fallback. The receiver app works fine on a dedicated Chromecast Device, and the same is true for our web application.

This is why we suspect it as something to do with the Chromecast built-in app, because it can also reproduce the audio sync problem on a NVIDIA Shield.

I have been testing with Chromecast built-in app version 1.56.275391

With regrads

Morten

Re: Chromecast on Google TV audio sync issues

djtetei — Thu, 11 Nov 2021 15:43:54 GMT

Have you tried adjusting the audio group delay in the Google Home application for the Chromecast device, to verify if you can resynchronize?

If you clean cache and data on the Chromecast built-in app, the issue is still present?

Re: Chromecast on Google TV audio sync issues

Jeran — Tue, 16 Nov 2021 17:52:20 GMT

Hey there,

Did you have any more questions or need any additional help? If not, I'll go ahead and lock up this thread in 24 hours.

Just checking up,
Jeran

Re: Chromecast on Google TV audio sync issues

Jeran — Wed, 17 Nov 2021 19:07:05 GMT

Hey there!

We haven't heard back from mimo, and it's been a few days, so I'm locking the thread. As always, feel free to make a new thread if you have any more questions or concerns.

Thank you for your help, djtetei!

Best regards,
Jeran