** RC1 AV Sync Issue ** -> Read me before upgrade

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bilbonvidia Offline
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Post: #41
I am on RC2!

I am on XBMCbuntu with an ati card directly plugged into my tv via hdmi no av system and am trying to understand what is going on.

I had no issue on sync in beta 3.

Is it that in RC2 there is a new patch which is autocalculating a a delay it thinks there should be and that I need to say to xbmc actually, you dont need to do anything by entering this in advanced settings:

<video>
<!-- Compensate display latency (video lag). Latency is given in msecs. -->
<latency>

<!-- Global default display latency -->
<delay>0</delay>
</latency>

</video>
(This post was last modified: 2012-03-08 19:10 by bilbonvidia.)
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bilbonvidia Offline
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Post: #42
Edited to add that I am on RC2 and this is happening.
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bilbonvidia Offline
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Post: #43
I added this:
<video>
<!-- Compensate display latency (video lag). Latency is given in msecs. -->
<latency>

<!-- Global default display latency -->
<delay>0</delay>
</latency>

</video>

same, but I have noticed it is happening on ac3 sound and not mp3 sound.
What do I need to do? Please help.
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DDDamian Offline
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Post: #44
You should not have to explicitly enter anything in RC2 if you dont' experience global delays or delays based on movie fps. RC1 required some entry, RC2 doesn't.

A delay in a specific codec e.g. AC3 is most likely due to your receiver/TV processing times, and is adjustable for using the standard in-movie delay accessed by the OSD, audio pop-up.

System: XBMC HTPC with HDMI WASAPI & AudioEngine - Denon AVR-3808CI - Denon DVD-5900 Universal Player - Denon DCM-27 CD-Changer
- Sony BDP-S580 Blu-Ray - X-Box 360 - Android tablet wireless remote - 7.1 Streem/Axiom/Velodyne Surround System
If I have been able to help feel free to add to my reputation +/- below - thanks!
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bilbonvidia Offline
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Post: #45
I think its an issue that I have just not noticed before.

Interestingly it stays in sync if I dont use the auto refresh rate changer on both ac3 and mp3. The delay I need to set seems to be -200 on the problem files. (ac3)

The headache I have now is that I have hundreds of kids tv shows in 24p some with ac3 and some with mp3 and the kids cant manage the offset by themselves.

How do people get round this? I suppose I could leave the auto refresh off but then my smooth playback goes out the window.

Can a delay be set for a specific series/season?
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DDDamian Offline
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Post: #46
bilbonvidia Wrote:I think its an issue that I have just not noticed before.

Interestingly it stays in sync if I dont use the auto refresh rate changer on both ac3 and mp3. The delay I need to set seems to be -200 on the problem files. (ac3)

The headache I have now is that I have hundreds of kids tv shows in 24p some with ac3 and some with mp3 and the kids cant manage the offset by themselves.

How do people get round this? I suppose I could leave the auto refresh off but then my smooth playback goes out the window.

Can a delay be set for a specific series/season?

Only manually at this time (in the Video OSD) I'm afraid. Just to try, what happens if you let XBMC decode your AC3 by disabling AC3 passthrough in your System>Audio Output settings. May be a workaround. Short of another GPU that's all I can suggest.

System: XBMC HTPC with HDMI WASAPI & AudioEngine - Denon AVR-3808CI - Denon DVD-5900 Universal Player - Denon DCM-27 CD-Changer
- Sony BDP-S580 Blu-Ray - X-Box 360 - Android tablet wireless remote - 7.1 Streem/Axiom/Velodyne Surround System
If I have been able to help feel free to add to my reputation +/- below - thanks!
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bilbonvidia Offline
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Post: #47
Thanks for the suggestion, I have tried many things and cant get it to work consistenly but I was looking for a quieter card anyways so will be purchasing a gt430 soonish, hopefully this will help!
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bilbonvidia Offline
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Post: #48
Just to say that I got a nvidia gt430 and now I have no synch issues whatsoever that I have noticed. Yippee.
XBMCBuntu
(This post was last modified: 2012-04-19 18:21 by bilbonvidia.)
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