After searching it seems that the note 8 has aptx support but my aptx headphones don’t agree! Sony z5 shows aptx when connected and the sound is much better then the note 8. The note 8 sounds the same as the iPhone 7 using the same headphone and the iPhone 7 has no aptx support.
Can anyone confirm that the note 8 exynos version has aptx?
Hey hope I'm not to late but I found out how to fix this. I have sony (WH-CH700N) and a note 8 and the same problem. Just need to go to Bluetooth settings and sync media volume. I don't know but that fixed it for me hope it helps