Recording help

[a89a89]

I didn't know where too put this so I apologies if I  didn't place this in the correct spot. Now to my problem, my headset, a turtle beach px3 does not record game sound. I use mac and record with quicktime player. Here's a link to a video of mine testing the sound ( I know its minecraft footage)  http://m.youtube.com/watch?v=m5MGeTwXpto
I have my volume up and I can hear it in my headset but not in the video. Please help!

[Adam561]

You need for your line-in to be one of the audio inputs (I also have a mac )

YouTube it!

[a89a89]

thank you so much!

[Adam561]

No problem!