Sound level opitimization

I have a number of sound clips that various people have recorded for me for my game. The problem is they are all recorded at various levels. Does anyone know of a way (preferably easy) to equalize the level across all of the files?

Cheers [import]uid: 7841 topic_id: 21828 reply_id: 321828[/import]

+1 on Audacity, it’s very handy and it’s free. [import]uid: 52491 topic_id: 21828 reply_id: 86795[/import]

Should be a pretty easy to do with Audacity

http://audacity.sourceforge.net/

Edit: Grammar [import]uid: 119459 topic_id: 21828 reply_id: 86720[/import]