* To install Audacity, copy the Audacity folder to /Applications or 
   any other location of your choosing.

* If you are a first-time user of Audacity, security settings on 
   OS X 10.7 or later may block Audacity being launched. To permanently
   enable Audacity launch, right-click or control-click on the Audacity 
   application in Finder, choose "Open", then in the dialog box that 
   appears, choose "Open".