Hello, So I stopped playing guitar like a year ago, and I thought rocksmith would be a fun way to get back into it... But I see that you "need" the realtone cable or do I? I see a few stuff around the internet, using a external soundcard and stuff... Could someone point me a good, precise way to do that??? I have a Roland Duo capture soundcard. I don't have the game yet, since I'm not sure if it would work??? thank you