I noticed that for most MKV or MP4 files, the audio is out of sync with the video about 200ms, but for avi files it isn't the case.
I am not getting frame drops or anything like that, and it seems like for 720p or 1080p mkv/mov (hires quicktime trailers) the audio lag is exactly the same.
I tried using both Haali splitter and the built in MPC source filters, but the situation is the same. I found the MPC source filter worked better than Haali with less crashing when skipping around in a movie (and allows for keyframe jumps, which haali did not). Is there a fix for this? Or do I need to just offset the audio 200ms for every mkv file in MPC?
I did also tried MadVR and LAV and both of those saw higher CPU usage with negligible performance gains, so I didn't continue using them. LAV was very stutterish.