Help, audio doesn't work at all

I just already install UE 4.20 and I pretty new to UE, im notice that sound not working at all.Event in content browser…I already turn on real time audio and has enabling editor sounds.I just install previous version of engine also reinstall current version but still not work.I have no issue that related to sound with other software

(I also attach my spec from dxdiag)

Can anyone help me? Thanks

Nevermind,I can figure it now :slight_smile:
.I just find the solution here
https://forums.unrealengine.com/development-discussion/audio/116874-new-audio-engine-early-access-quick-start-guide