It is not relevant but part of the development is made on a Windows PC, it should work. Sound is handled by the Flash Player (and Cirrus) the only possible cause that cones in mind is low connection speed. If you still have doubts, I recommend to test it on a free server or demo account and exclude server issues.
I have checked speed with test speed websites and it seems OK. The video loads fine, so why would sound not work?? Can you pls. help
as withot sound the code had no value for us. I hope you can help. Thanks