I experienced a slight delay/lag of audio during video playback on the MINIX Neo G4 (and X5). The audio and video are not synchronized correctly (out of sync).
I haven’t really found a fix but you can temporarily work around this by using software decoding instead of hardware decoding (acceleration). A few video players out there have this option. I’m using MXPlayer. I think MoboPlayer and DicePlayer have this option as well…
This problem seems to be an issue especially of devices with the Rockchip 3066 (rk3066) processor. At least the Rikomagic mk802 has this problem too.
Please comment if you found a real solution for this problem!
The new rom for the x5 fixed this issue for me…