Audio sync problems when screen set to 24 Hz (5 Viewers)

[emphatic]

After a bit more fiddling, it seems that one problem with setting the refresh rate to 23.976 hz creates other problems with the system stuttering (which I hadn't noticed with my previous short tests). I played around with the video renderer settings (keeping 23.976 hz) and found that removing the tick from the "Use nonsquare for scaling (recommended for quality)" option improved things significantly.

Now my system is much smoother (although still not 100% perfect - but pretty much there) and as far as I can tell I do not have audio sync issues with any media (even the files that were "broken" by the change to 23.976 hz discussed a couple of posts ago).

So, in summary - setting 23.976 hz refresh fixes audio sync issues for most mkv videos, but is very stuttery at times, and a few films are still out of audio sync, disabling the nonsquare scaling rendering then stops the stuttering and makes the rest of the videos work.

Is this a coincidence, or is this a possible work-around solution for other users with this problem?

Robbo100

This seems to fix my non-syncing issues as well. Good find.
Emph

 

[robbo100]

In my case, i find it is better to be lucky than good!

 

[emphatic]

Sorry, I spoke prematurely. I still get sync issues with 29.97 material if I use ARF.

Emph

 

[tourettes]

"Use nonsquare for scaling (recommended for quality)" option improved things significantly.

Your sytem specs say you are on Windows 7 which means you should be using EVR instead of the VMR9. That option is under VMR9 renderer's config and wont affect EVR in any way.

 

[robbo100]

I think I was on Win XP back in those days (the post is about 15 months old!)

 

[tourettes]

I think I was on Win XP back in those days (the post is about 15 months old!)

Uhm... sorry about not noticing it - emphatic did just resurect some dead post

 

[Pedro Collins]

I know this is a very old thread, and having read all the posts...

Have anyone found a solution yet?

Using Win7 x64, Athlon II 250, 4 gig's ram, ati hd5450, latest lav filters, LG 50" at 1080p@24, SPDIF out, DD and DTS pass through, still have sync issues (audio comes before the video, enough t be noticed, even by the wife .

Thanks in advance for any info/solution.

 

[Golfimbul]

Hi guys

Having just upgraded from Windows 8 media center to MediaPortal 1.6 (yes, my first foray into MediaPortal) I am amazed at the power of this software! Thank you to the developers, it is amazing.

I am having the following issue though:
1080p @ 24hz MKVs (ripped directly from bluray with MakeMKV) have lip sync issues. HTPC (HDMI) -> Denon 2113 (HDMI) -> Panasonic P65ST60A. The sound comes before the lips move so to speak. Not a huge amount, but it's there. I'm using MPAR but I have bitstreaming options all set (as I just love to see my amp light up with DTS-HD Master or Dolby TrueHD symbols).
50hz SD and HDTV has no such issues (or maybe it's too grainy to tell haha) whether I use MPAR or not.

Any ideas? Sounds like this 24hz audio sync problem isn't isolated to me?

 

[Golfimbul]

I'm wondering if the audio is setting itself to 50hz (the background display refresh) BEFORE the automatic refresh rate changer kicks in and puts in on 24hz. So audio is running at 50FPS (equivalent) and video at 24FPS?

 

[emphatic]

I'm using MPAR but I have bitstreaming options all set (as I just love to see my amp light up with DTS-HD Master or Dolby TrueHD symbols).

Hello.

I agree, seeing the AVR show the symbols is cool! Have you tried following this guide though: https://forum.team-mediaportal.com/threads/guide-perfect-playback-display-calibration.119610/ to the letter?

Emph