How to add sound when motion is detected

I would like to know how have a sound played when motion is detected, I would like to have different sound for different cameras. The sound will tell the importance of the motion. If a sound is played, the monitor does not have to be constantly watched. Does any one know how to have a sound added to a camera when using motion detection?.
Thank you.

I’m now adding to the todo-list the possibility to have sound played on Client side (Windows Client)

Sound now works on last release ?

Yes, in windows client.