How to place sound on animation?

[Times]

Hello, just came around here to ask if I can place a sound on an animation with MdlVis (or another freeware program?)
And if it's possible, how can I do it?

 

[Sclammerz]

This can help you with that: http://www.hiveworkshop.com/threads/adding-sounds-and-attachments.30738/