Incorrect Audacity install!

Ok so I downloaded the dmg and did not read the warning about not to install from the dmg !
So I no longer have any audio on my mac running 10.9.2 so how do I get back control of my audio?

The warning is about not running Audacity from the DMG: .

If you recorded from a USB audio device, disconnect it.

Are you on MacBook Pro? If you removed headphones after recording, make sure you put the headphones in and out a few times so that the Mac knows you have removed them.

Open System Preferences > Sound to choose the correct output device. Turn the volume up.