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Issue with DTS playback, and Issue with HDMI handshake/passthrough


ChrisCicc

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ChrisCicc

Hello All! 

I'm hoping someone else may have come across one of these issues and found a solution. I have two issues that resulted from some software updates. 

Issue 1: I cannot play DTS-encoded files from WMC/MBC with LAV Filters. They work fine in WMP. When I drag them into the graph, they load LAV audio and video decoders as expected. But when I try to play from WMC/MBC, it fails to load the LAV filters and reverts back to the Microsoft AV Decoders. That's a problem because the Audio decoder is disabled, and the video decoder doesn't allow fast-forward/rewind with these codecs. I do not understand why it loads fine in WMP and the graph, but not WMC/MBC?

Issue 2: It appears my computer (Intel NUC i3) and my AVR (Pioneer Elite VSX-31) are not handshaking correctly. This has resulted in only four supported formats showing (DD, DD+, DTS, WM9). However, my AVR supports all the majors, including DTS-HD MA, and none of those are showing. In addition, if I try to enable bitstreaming on any of the four listed formats, audio playback fails on all media types in all players, even if not the format that was enabled. I've seen EDID overrides, but nothing specifically for my AVR. Beyond that, I'm stumped on how to diagnose the cause of the handshake issue, or how to fix it.

I can live without the bitstreaming, as the multi channel sources do seem to be decoded and converted into multi channel PCM, which my receiver is properly detecting. But I can't live without the ability to playback DTS encoded files in WMC/MBC..

 

System Specs: Intel NUC i3, Windows 8.1, LAV Filters 0.64, MBC up to date. 

Thanks for your help!!

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ChrisCicc

Yes and yes. I used the LAV installer which drops both versions. In the Program Files (x86) folder, there are sub folders for x86 and x64. Dolby Digital encoded files play just fine in WMC, it only affects DTS. I've also dropped the ArcSoft DTS DLL in both the x86 and x64 folders. That used to work just fine before the software upgrade... 

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spootdev

Issue #2: Make sure your Pioneer is on FIRST before turning on the NUC. 

 

If I don't start up my stuff in the right order it will default to the lower EDID and then I "lose" HD audio.

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ChrisCicc

Issue #2: Make sure your Pioneer is on FIRST before turning on the NUC. 

 

If I don't start up my stuff in the right order it will default to the lower EDID and then I "lose" HD audio.

 

Tried that. Didn't seem to make any difference. I also tried enabling HDMI Control, the only thing that affected was the ability for Harmony Ultimate to switch to HDMI 1 reliably. 

 

Logically, the only thing that makes sense, since I'm stuck with PCM mode, is that the DTS DLL is not being loaded/used by LAV Filters correctly, so all DTS audio fails. I'm using a DLL from 2010, maybe there is one newer? 

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  • 4 weeks later...
divide_by_zero

Wow, this is really odd behavior.

 

Not sure what can be done about the handshake issue other than having Tully at Avsforum make you a modified EDID, or trying to upgrade/downgrade your Intel GPU drivers to see if that helps matters.

 

As far as the playback issue with DTS - what about reinstalling/reconfiguring LAV filters to not decode DTS? Win 7 has built-in DTS support and can bitstream this natively (though admittedly I'm not 100%  sure if 8.1 can do this).

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