Why is A/V sync such a difficult problem to solve with home theater equipment? I bought a fairly high end Epson projector and it has widely different amounts of video delay depending on the frame rate of the input signal. It's 40ms for 60hz and 200ms for 24hz. So I can't set a manual audio delay on my receiver because I'll have to change it every time I switch between watching film and tv content. If I turn on "game mode" on the projector then there's no delay on any input, but then my fucking receiver has a 50ms audio delay which can't be fixed because it only allows you to add audio delay, not video delay.Supposedly HDMI 2.1 is supposed to fix this with an automatic A/V sync feature over ARC but I've never seen a tv or projector that actually supported this. How is it that something that completely ruins the experience of watching a movie on equipment solely designed for watching movies hasn't been fixed by this industry after all these years?
bumping
I had the same problem OP. My stuff runs off an HTPC so I just locked the display rate to 120Hz and duplicate/interpolate frames for anything below that. The math doesn't quite work for 29.97 and other rates but it's pretty much imperceptible to my old man eyes and keeps the setup consistent.
>>110205399I'm using an Apple TV, which can only output 24, 50, or 60hz. Even if it could do 120, that still wouldn't solve the problem when I want to watch PAL tv shows that are 50fps.
