Is it possible to extract the crowd chants/noises as mp3's?

Is this possible? I'm experimenting with music sampling and need sounds/chants related to basketball such as defensive chants, cheers, boos etc that I hear when I play 2k11. Even if the sounds are in their raw forms I can try to convert them to mp3s or .wavs.

If any one could extract the crowd chant files for me I would be incredibly appreciative of it.

unfortunately, the 2k10 and 2k11 audio files have not been decrypted