1. SM-N910C (Note 4)
2. Marshmallow 6.0.1 OTA (not a custom ROM, no root)
3. It has Wolfson WM5110 and Hi-Res works, but without DVC.
When DVC is on, there's only a ticking sound, like Van Halen - Hot for Teacher drums . I've noticed that 1 second on the player's indicator takes 13s IRL. I've also tried different settings, but no luck.