Because it was the better API? Game devs all over the net have praised the Web Audio API
The Mozilla proposal required audio processing in JavaScript which in some ideal world is a great idea but in the real world where you want audio running on Intel ATOM and mobile processors and still have time to run other code is the not such a good idea.
The Mozilla proposal required audio processing in JavaScript which in some ideal world is a great idea but in the real world where you want audio running on Intel ATOM and mobile processors and still have time to run other code is the not such a good idea.