Hi! I've set my dmix up properly and it works on most apps. Now I wonder why skype doesn't work with it? It behaves just like before, crashes when it's to play a sound

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And another thing, when I use aoss on a app I get horribly bad quality and the sound plays like 3 times as fast! How can I fix this? I really need aoss and skype working ;(
I'm on Ubuntu using a nforce 3 built-in soundcard...