Hey guys, I tested with cocos2d-x v.12 and it plays sound !
I have to turn on the volume of simulator to full as per Andrew’s suggestion. Anyway, I am not flexible enough to go back and test with v.11.
To be able to play sound on Playbook, I have to change code a bit when referring to sound files.
I have to change to this,
and the last one is the trick that James Chen used for bbsdk 2.0, I have to manually create an empty “empty” folder within a project via qnx IDE.
Then everything will work just fine.
Thanks for all your help again !