I will try this again though when I get home. I also disabled media foundation before without any luck. But im not sure its 5.1 anymore.Īlso like I said up top, I have reinstalled LAV many many times over the past two days and the only thing that seemed to work was installing ac3 for some reason. I clicked on the realtek audio device (optical) > advanced tab and unchecked 'allow this device to be taken over by other programs' or something along those lines (Im not at home atm sorry lol) and now I can control ac3 5.1 via the OS. I have a gigabyte motherboard with spdif support and realtek audio something or other. I actually fixed the ac3 5.1 issue I had (volume control via cpu OS). I will try disabling ac3 and testing that out on LAV (im positive I already tried that). I'm pretty sure my system does support pass-through, only for AC3 and not DTS though my receiver is fairly old. Ive been using ffdshow, then CoreAVC and then LAV for several years and never really had much issue. I am sorry if this has been posted before but I saw this thread and figured maybe someone more knowledgeable about this stuff might be able to help.

Oh also I already installed 15.8 (im also on an AMD card) and disabled HW Acceleration using codec tweak tool (was already disabled in LAV, I dont think I really need it anyways) So I have concluded that something bad happened with WMP and I have no idea what else to do. Also the LAV/DVS tray icons show up when playing in this program. Then I hit video playback and everything works (hideous video rendering though but its good for testing). I found a program called graph studio or something like that which allowed me to import the video and get a neat flow chart of the processes the video is supposed to open when used and everything seems to be fine there as well, it shows the video splitting into its designated filters and outputting as it should. So I have done several fresh installs of k-lite, fiddled around with the codec tools (use merit settings for direct show, filter ect.) and they were all where they were supposed to be. Then a few days ago something serendipitous occured and LAV no longer opened when playing associated files. 10bit vids, dts audio, everything was fine. The install setup with k-lite allowed me to set WMP as my associated player which I think was somehow the key to everything working. I uninstalled all my codecs in order to do a fresh install, which for some reason wouldn't function properly, and so I installed k-lite basic because all I wanted was Directvob, lav filters and the codec tweaking tools.

When I upgraded from windows 7 to 10 I had playback issues.

Codec tweak tool windows 10