Freeview HD UK display resolution changes trigger audio out of sync

[sonofdibnah]

I talked about this on the PM4K thread on the Plex forum. Since then I have been able to recreate the issue on a clean install. The issue stems from the on the fly changes that freeview can trigger and highlights differences between this build of 21.3 and team CoreELEC's version.

When there's no whitelist and freeview swaps from 1920x1080i 50fps to 1920x1080p 25fps:

• p3i shows a black screen before video resumes with audio out slightly out of sync.
• CoreELEC 21.3 seamlessly handles the change and audio stays in sync.

If I whitelist resolutions apart from 25fps and the change takes place:

• p3i no longer shows a black screen but the audio goes out of sync.
• CoreELEC 21.3 seamlessly handles the change and audio stays in sync.

The events that trigger this are random but seem to happen most often around news programmes so I've had to be patient in forming these conclusions. Hardware used is Odroid N2+ so non of the DV stuff is available in p3i. As such p3i isn't vital to me as I'm happy to stay with CoreELEC's version.

[pannal]

T2 might make this better or even fix it. I'm not entirely sure if this is fixable by design. Did you try turning LAV to Full?

[CaptainMoody]

I have logs from a fresh build - Anything I can send you that could help?

[pannal]

No, please table this until I've released T3. Then send me the full log via DM on Discord, thanks :)

[CaptainMoody]

Would there be an issue having stock installed on the emmc and p3i installed on a USB and booting from one or the other?

[pannal]

I honestly have no idea. I wouldn't know why there would, though. USB3 can be finicky, though, I like good SD cards for this stuff better.

[CaptainMoody]

Sorry to resurrect this but I have been on T4 for the last couple of days and it seems to have resolved all of the audio sync issues with UK live TV :)

[CaptainMoody]

Sorry to resurrect this but I have been on T4 for the last couple of days and it seems to have resolved all of the audio sync issues with UK live TV :)

[sonofdibnah]

Thanks for posting about this Captain Moody. I'm using T4 on my N2+ (no DV sadly) and there's not been a single audio sync issue in at least 4 periods of watching when I could have guaranteed them before. This release is really something and using it as default for daily use is a no brainer.

[sonofdibnah]

Not a trace of the problem in 3 weeks of viewing.

[sonofdibnah]

Not a trace of the problem in 3 weeks worth of viewing.