Sure its not a late April fools joke
Hearing 3D ? That a visual term.
I know you eat with your eyes, i have never heard (pun intended) of eyes being able to hear.
Maybe it all tru, you never know. Only time will tell.
My take on it and the hype / spin is.
If Linx was a 50% improvement on Verso, and Cala is improvement on Linx, now 3D is 50% better than Link.
Then anything before the Verso could only have been a cork or an ear trumpet. Certainly it could never have actually heard anything.