How do I download a youtube video and extract the audio from it so I can use it in a...

[Paranormal Kitty]

...flash animation? I'm using Mac OS X Snow Leopard.
It's not illegal, it's just for class. I'm not profiting from it!

 

[Phoenix]

Use keepvid to download you tube video by copy and paste you tube video link. Use any format converter to convert this file into audio.

 

[styrckt]

this is highly illeagle