Well, at the bottom of the FAQ page ( http://www.liveatc.net/faq/
) You'll find this:
All Content Copyright© 2014, LiveATC.net/Dave Pascoe, All Rights Reserved.
Audio streams may not be used in any third-party products.
Use on third-party web sites is limited to single streams and must be coordinated with LiveATC.net.
LiveATC.net is not affiliated with the FAA or any other aviation authority.
And more to the use of recordings like on youtube:
You agree that you will not:
3.1 use the LiveATC.net Services to reproduce copyrighted materials;
3.2 copy, store, edit, change, prepare any derivative work of or alter in any way any of the tracks streamed through the LiveATC.net Services without giving credit to LiveATC.net as the source of the original material;
You better ask the site founder if you want to do something like this.