Recently got my Vava 4k and really enjoying it.
A few things come up after a bit of use, most annoying is the audio lag when I send the sound to external sound bar.
Vava 4k / 100inch alr screen
Xiaomo mi S 4k android tv
LG sound bar
Sound out of projector = no synch issues
Optical cable from vava to sound bar = bad sound synch. bad enough thats it impossible to watch.
Sound cable to sound bar from Android tv and hdmi to projector is fine no synch issues. But this cannot last as I can then not use the other HDMIs without manually switching the audio cable. Also what if I get a roku stick with no external sound out, will I be forced to use the vava speakers which while not bad are not going to win any awards.
Not sure if am missing something in the setup or a sound delay option in the settings.
Setting output on projector to RAW and not PCM makes it better. Still could use a sound delay setting to iron out the last few 100 milliseconds of synch.