Kodi Community Forum
24p and audio sync issues - Printable Version

+- Kodi Community Forum (https://forum.kodi.tv)
+-- Forum: Support (https://forum.kodi.tv/forumdisplay.php?fid=33)
+--- Forum: General Support (https://forum.kodi.tv/forumdisplay.php?fid=111)
+---- Forum: Windows (https://forum.kodi.tv/forumdisplay.php?fid=59)
+---- Thread: 24p and audio sync issues (/showthread.php?tid=80247)



- PsychoCheF - 2011-01-05

Will this be fixed in future release?
Really annoying, so i stick with my old Babylon release for now Sad


- ErlendSB - 2011-01-05

I'm also waiting for this fix.
Has the patch been committed to the trunk, or do we still have to build ourselves?
I don't mind using a nightly build


- ashlar - 2011-01-05

Honestly I hope that the solution to be committed would be slightly more elegant, to euphemize.


- tubby - 2011-01-05

I'm using the dsplayer build and setting a sync offset in the directshiw audio settings. Still not ideal but it seems to be working for now. The sync difference for dsplayer isn't quite 200ms though. I'm using 115 right now but it may need more tinkering. Also of note, the internal audio sync function in xbmc doesn't work for dsplayer. (it will pull up on the odd but it has no effect.


- PsychoCheF - 2011-01-25

Is there a ticket created for this issue?

EDIT:
I've searched around a bit and tried some of the things mentioned here: http://forum.xbmc.org/showthread.php?tid=92363

Disabled:
-Aero
-Unused audio devices
-Excluded all xbmc related folders from my virus software.

Updated nvidia drivers.

Now it seem to worked correct, at least with this evenings movie.


- a11599 - 2011-02-04

Recently I started to rip my DVD collection to x264 into .mkv container. Using mkvmerge 4.4.0 this issue is not present anymore. Looks like it's time to remux my existing movies...


- PsychoCheF - 2011-02-05

PsychoCheF Wrote:Is there a ticket created for this issue?

EDIT:
I've searched around a bit and tried some of the things mentioned here: http://forum.xbmc.org/showthread.php?tid=92363

Disabled:
-Aero
-Unused audio devices
-Excluded all xbmc related folders from my virus software.

Updated nvidia drivers.

Now it seem to worked correct, at least with this evenings movie.

Now i've tried a bit more... and the problem is back Sad
I'm going back to the beta-Dharma were i dont have this problem.


- a11599 - 2011-02-26

a11599 Wrote:Recently I started to rip my DVD collection to x264 into .mkv container. Using mkvmerge 4.4.0 this issue is not present anymore. Looks like it's time to remux my existing movies...

Remuxed my movies. Seemed the problem has gone. But now, although nothing changed, it is back.


- isamudaison - 2011-02-27

I've also had occasional sync issues. I've found that changing the following settings has made it (seemingly) more consistently 'in' sync:

*disable ac3 & dts capable reciever in system->audio output (causing xbmc to send lpcm to your reciever)
*if you have a 'wasapi driver' output selected, change it to the directsound driver (who knows why this helps...)

I'm not sure if these settings 'degrade' audio quality but if it does it's certainly a lot more bearable than out of sync a/v


- stefan85 - 2011-03-02

Ik have the same problem. I'm using a Core I3 540 processor. My delay is also about 200ms. Currently XBMC is running on windows 7. Is this sync problem only for windows or also for Ubuntu?


- naserbaser - 2011-03-04

I'm also experiencing this, although I haven't had the time to play around more with the settings. All I know I get perfect a/v sync with 60hz and that the audio is off when I try 24p.


- PsychoCheF - 2011-03-07

isamudaison Wrote:I've also had occasional sync issues. I've found that changing the following settings has made it (seemingly) more consistently 'in' sync:

*disable ac3 & dts capable reciever in system->audio output (causing xbmc to send lpcm to your reciever)
*if you have a 'wasapi driver' output selected, change it to the directsound driver (who knows why this helps...)

I'm not sure if these settings 'degrade' audio quality but if it does it's certainly a lot more bearable than out of sync a/v

It could degrade your audio.
If you using an optical or coax cable you will miss the surround sound, since those interface cant handle uncompressed multichannel audio (lcpm) because the high bitrate, so it will only be stereo.
An hdmi interface can handle multichannel lcpm, but i do not know if XBMC does.

BTW, the Dharma beta fucked up to, so no im back on my really old babylon release, were everthing works just fine. A little slow gui and im missing the new addon system, but i prefer to be able to se my movies correct.

I wonder if this could be related to the wake up after suspend problem many people have (windows)?


- Melzas - 2011-03-09

naserbaser Wrote:I'm also experiencing this, although I haven't had the time to play around more with the settings. All I know I get perfect a/v sync with 60hz and that the audio is off when I try 24p.

I'm having this problem too, it really sucks... But when you are playing 24p in 60 Hz, you get the 3:2 pulldown issue - right?


- naserbaser - 2011-03-13

Melzas Wrote:I'm having this problem too, it really sucks... But when you are playing 24p in 60 Hz, you get the 3:2 pulldown issue - right?

Yeah.. but somehow I don't notice it as much anymore Smile


- a11599 - 2011-03-15

I submitted a new patch which is less hackish, more versatile and maybe has better chances to get into trunk. Never lose hope. Smile