2014-08-11, 02:05
I've tried disabling and enabling desktop composition and it appears to have no effect on my audio sync. It's great that it works on your system.
(2014-08-06, 19:20)steelman1991 Wrote: @fritsch and FernetMenta is the build provided earlier in the thread still valid for testing of this issue? If so will happily provide logs on my return from holiday on Friday.
(2014-05-23, 16:00)belongamick Wrote: Just in case this fixes the issue for anyone else.
I had av sync issues with 24p content for the longest time - but for me it was resolved in 13.0. BUT ONLY if I use these settings:
enable adjust display refresh rate to match playback
and enable Sync Playback to Display
and use A/V Sync method Audio Clock
I am bistreaming audio to my Yamaha AMP using wasapi.
If I disable A/V Sync then the issue comes back.
Pressing o during playback shows a missed counter which increments by 1 or 2 per hour, or if I pause it runaway increments until I resume playback.
I'm using an AMD 5450 graphics card.
(2014-08-20, 21:39)belongamick Wrote:(2014-05-23, 16:00)belongamick Wrote: Just in case this fixes the issue for anyone else.
I had av sync issues with 24p content for the longest time - but for me it was resolved in 13.0. BUT ONLY if I use these settings:
enable adjust display refresh rate to match playback
and enable Sync Playback to Display
and use A/V Sync method Audio Clock
I am bistreaming audio to my Yamaha AMP using wasapi.
If I disable A/V Sync then the issue comes back.
Pressing o during playback shows a missed counter which increments by 1 or 2 per hour, or if I pause it runaway increments until I resume playback.
I'm using an AMD 5450 graphics card.
FYI - the above settings which worked for me in 13.0 and 13.1 no longer work in 13.2. Back to 13.1 for me.
(2014-08-21, 08:34)Warner306 Wrote:(2014-08-20, 21:39)belongamick Wrote:(2014-05-23, 16:00)belongamick Wrote: Just in case this fixes the issue for anyone else.
I had av sync issues with 24p content for the longest time - but for me it was resolved in 13.0. BUT ONLY if I use these settings:
enable adjust display refresh rate to match playback
and enable Sync Playback to Display
and use A/V Sync method Audio Clock
I am bistreaming audio to my Yamaha AMP using wasapi.
If I disable A/V Sync then the issue comes back.
Pressing o during playback shows a missed counter which increments by 1 or 2 per hour, or if I pause it runaway increments until I resume playback.
I'm using an AMD 5450 graphics card.
FYI - the above settings which worked for me in 13.0 and 13.1 no longer work in 13.2. Back to 13.1 for me.
Are you testing the same content? I went through a week or two where I thought the issue was absent, but then I found some new content that was not. Turns out, the few movies and TV shows I had tried were in sync while others were not.
<advancedsettings>
<video>
<latency>
<if outputdevice="YAMAHA RECEIVER">
<refresh>
<min>23</min>
<max>24</max>
<delay>250</delay>
</refresh>
<refresh>
<rate>50</rate>
<delay>150</delay>
</refresh>
</if>
<if outputdevice="SAMSUNG TV">
<refresh>
<min>23</min>
<max>24</max>
<delay>0</delay>
</refresh>
<refresh>
<rate>50</rate>
<delay>0</delay>
</refresh>
</if>
</latency>
</video>
</advancedsettings>
(2010-09-02, 19:37)phillyfan1138 Wrote: Sometimes I have had this problem if the refresh rate is at 24.000 instead of 23.976. Make sure that your 24p is actually 23.976.
(2014-09-14, 16:44)meimeiriver Wrote:(2010-09-02, 19:37)phillyfan1138 Wrote: Sometimes I have had this problem if the refresh rate is at 24.000 instead of 23.976. Make sure that your 24p is actually 23.976.
I noticed this today too. But not on all 23.976fps movies. Seems the audio (XBMC 13.2) is about 200ms ahead, thus rather noticable. I tried playing the same movie on my PC (instead of the same XBMC as installed on my media player). There are only 2 variables left: Ethernet vs. direct access, and monitor vs. TV. My media center can handle >50MBps easily, so it's not Ethernet. It's not fullscreen either.
I even tried encoding the audio to LPCM, thinking it would make things easier for XBMC. It didn't.
I don't have the 24p bug, btw.
EDIT: I forgot to mention the movie syncs just fine on my desktop XBMC.
(2014-09-14, 21:40)Warner306 Wrote:(2014-09-14, 16:44)meimeiriver Wrote:(2010-09-02, 19:37)phillyfan1138 Wrote: Sometimes I have had this problem if the refresh rate is at 24.000 instead of 23.976. Make sure that your 24p is actually 23.976.
I noticed this today too. But not on all 23.976fps movies. Seems the audio (XBMC 13.2) is about 200ms ahead, thus rather noticable. I tried playing the same movie on my PC (instead of the same XBMC as installed on my media player). There are only 2 variables left: Ethernet vs. direct access, and monitor vs. TV. My media center can handle >50MBps easily, so it's not Ethernet. It's not fullscreen either.
I even tried encoding the audio to LPCM, thinking it would make things easier for XBMC. It didn't.
I don't have the 24p bug, btw.
EDIT: I forgot to mention the movie syncs just fine on my desktop XBMC.
I'm not an expert, but I think it is the TV's fault for not reporting the refresh rate correctly. That's not a fact but a strong suspicion. Some computer hardware may be better or worse at dealing with this. But I've tried three different configurations of hardware on the same TV and wound up with the same result.
Adding Reclock to DS Player or MPC-HC seems to work the best in all circumstances. But, even then, some content is still slightly out-of-sync. In the end, I went back to 60p playback after seeing 24p judder, artifacts and other tradeoffs that negate the small advantage of a native frame rate. I would prefer 24p playback. But even when it works, it still far from perfect in the home theatre environment.