I had problems with my shadow play program on pc (nvidia) in order to cap my game.. So one thing worked for me I hope it works for ya. The software youtube gives you to do LIVE streaming..
xsplit.com
I put on "local recording" And I could get video and sound.
Good luck <img src="{SMILIES_PATH}/icon_e_wink.gif" alt=";)" title="Wink" />