DTS audio = Video Skipping every x seconds (1 Viewer)

[Tmac]

After upgrading to the new 1.0.2 version (from 1.0.0) i noticed whenever i play a DTS .mkv file the video will fast forward a couple seconds every 10 or so seconds. Example: when someone walking he'll do "mini-sprints" every 10 seconds. Really weird to whatch.

It happens only with files that contains DTS audio. Dolby digital (Ac3) works perfectly fine. Does anyone ever experienced the same issue? I aprecciate any help on how to solve it. Thanks.

 

[kiwijunglist]

are you using dts signal spdif pass thru?
try ac3filter

 

[tourettes]

Probably solved with 0002060: Audio and video aren't always in synch when refresh rate is set to 24 hz. - MediaPortal Bugtracker

 

[WileECoyote]

Probably solved with 0002060: Audio and video aren't always in synch when refresh rate is set to 24 hz. - MediaPortal Bugtracker

I just upgraded to the 11.14 SVN from the 9.17 SVN and I have this issue with DTS. I have included the logs. Odd thing is it only happens with DTS. I have a few videos that have both DTS & DD, and when I switch the audio from DTS to DD it works fine. When I switch back to DTS it has a stutter every 5 seconds or so.

 

[Scythe42]

2009-11-21 17:33:30.583468 [Debug][MPMain]: Remove filter from graph: 0001
2009-11-21 17:33:30.583468 [Debug][MPMain]: Remove filter from graph: DirectSound: S/PDIF Pass-through Device (ASUS Xonar HDAV 1.3 Slim Audio Device)
2009-11-21 17:33:30.584468 [Debug][MPMain]: Remove filter from graph: Enhanced Video Renderer
2009-11-21 17:33:30.592468 [Debug][MPMain]: Remove filter from graph: MPC - MPA Decoder Filter
2009-11-21 17:33:30.592468 [Debug][MPMain]: Remove filter from graph: ArcSoft Video Decoder
2009-11-21 17:33:30.595468 [Debug][MPMain]: Remove filter from graph: z:\bdmv\STREAM\00001.m2ts

As this only happens with DTS tracks, I suggest trying a different audio filter that handles SPDIF pass-thru on your system. I had a similar issue with MPA under Win 7 where only every second 43ms SPDIF packet was send to the audio renderer on DTS tracks and only DD tracks worked fine. I switched to ffdshow and let it handle SPDIF pass-thru and the problem went away. Maybe MPA is causing a similar issue on your machine with DTS sound that screw up the sample times in some way so that they are arriving too close to the presentation time from the mixer.

 

[kiwijunglist]

try adding ac3filter to post processing, this solved my problem with dts stutter with spdif passthrough. ffdshow post processing would probably fix it too.

 

[WileECoyote]

try adding ac3filter to post processing, this solved my problem with dts stutter with spdif passthrough. ffdshow post processing would probably fix it too.

No go I tried both AC3Filter and FFDShow, neither helped. I forgot to add that the files that have an issue are ISO files. Since the Matroska Splitter automatically assigns audio & video codecs, does the post processing via MP even happen?

I am running Windows 7 Ultimate x64, Arcsoft & Windows codecs. I have had NO luck with Cyberlink codecs and Windows 7, so they are not installed.

Edit: Is there any way to tell the Matroska Splitter which audio codec's to use?

 

[WileECoyote]

After playing around with this (a lot) I finally figured out the issue. I added AC3Filter to the Post Processing and in the AC3Filter properties, I changed the output to No Change and it finally worked! I never could get FFDShow to work properly... But its working now, thanks for the advice guys!

 

[jim tressler]

What motherboard (or really what realtek sound chip)? Had the same problem - ac3 filter took care of it! Although every now and then it will crop up. A reboot of the pc usually fixes it.