Hi, hope someone can help. I have 2 Pioneer CDJ 400's and an American Audio 10 MXR mixer. I have the CDJ's running through my MacBook Pro with Traktor which work fine in external mixer mode. I have downloaded audacity and when I record mixes they sound very tinny, as if it's been recorded through the mic. I have the mixer connected through its output to the jack going back to the computer.

Please help