Howto record audio output on my Mac? How am I able to record the output on my Mac meanwhile I am listening it with earplug? i.e. listen something in browser in youtube and I want to record it as well?
Need two thing to be able to listen music and same time record it:


Download / Install Soundflower
Change Audio Midi Setup:


If you open OSX's 'Audio Midi Setup' program then from the Window menu choose 'show audio window', you can click the + button in the bottom left corner &amp; create a multi-output device. Then you just check the boxes for both soundflower and the built in output and Bob's your uncle - you can hear it as well as record it.