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Author Topic: Difference between Lipsync and A/V sync  (Read 400 times)

Manfred

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Difference between Lipsync and A/V sync
« on: September 08, 2018, 03:18:26 am »

Is there a functional difference if one uses the lipsync functionality in Theatre Mode and the A/V sync function under Options->Video->Advanced?
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RoderickGI

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Re: Difference between Lipsync and A/V sync
« Reply #1 on: September 08, 2018, 08:05:55 pm »

The only difference that I'm aware of is that "Options->Video->Advanced" are global settings used for all video files with matching display rates (24, or 50, 60, 120 Hz) while the Lipsync functionality available through the OSD menu is a file by file adjustment, with the setting selected stored in the [Playback Info] tag.

The tag looks something like below when a lipsync adjustment has been made, and doesn't include lipsync info when no adjustment has been made. There may also be other file specific playback info in the tag.

(1:2)(15:LipSyncOffset24)(3:100)(13:LipSyncOffset)(3:-80)

This was for a 23.98 fps video playing at 60Hz on my MC Client PC display, with a -80 ms adjustment, which I think was also played on my HTPC at 23.98 fps with a 100 ms adjustment. So the numbers make some sense.
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What specific version of MC you are running:MC27.0.27 @ Oct 27, 2020 and updating regularly Jim!                        MC Release Notes: https://wiki.jriver.com/index.php/Release_Notes
What OS(s) and Version you are running:     Windows 10 Pro 64bit Version 2004 (OS Build 19041.572).
The JRMark score of the PC with an issue:    JRMark (version 26.0.52 64 bit): 3419
Important relevant info about your environment:     
  Using the HTPC as a MC Server & a Workstation as a MC Client plus some DLNA clients.
  Running JRiver for Android, JRemote2, Gizmo, & MO 4Media on a Sony Xperia XZ Premium Android 9.
  Playing video out to a Sony 65" TV connected via HDMI, playing digital audio out via motherboard sound card, PCIe TV tuner

Manfred

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Re: Difference between Lipsync and A/V sync
« Reply #2 on: September 09, 2018, 04:15:08 am »

Thank you RoderickGI!

I will open another thread foy my problem.
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