ID:2140645
 
Resolved
3D sounds didn't work correctly.
BYOND Version:511.1354
Operating System:Windows 10 Pro 64-bit
Web Browser:Chrome 52.0.2743.116
Applies to:Webclient
Status: Resolved (511.1355)

This issue has been resolved.
Descriptive Problem Summary:

http://www.byond.com/forum/?post=1992606&page=2

Webclient's 3D sound effects do not work. Have tested on multiple environments and browsers.
I'll look at this very shortly. I had tested this myself so I know it ought to be working, but Dartium may be doing something different or maybe I have some Chrome flags enabled that allow for this.
Lummox JR resolved issue with message:
3D sounds didn't work correctly.