Hi Ladizi
My name is Andre Da Costa; an Independent Consultant, Windows Insider MVP and Windows & Devices for IT MVP. I'm here to help you with your problem.
I noticed there are some important driver updates for your make and model.
BIOS Update: April 2019
https://dlcdnets.asus.com/pub/ASUS/mb/LGA1151/P...
Chipset Driver Update: April 2019
https://dlcdnets.asus.com/pub/ASUS/mb/09MEI/DRV...
After applying these updates, restart then apply the latest Realtek Audio driver: