Recording Your Mac’s Video Screen with Audio

To record your Mac’s Screen with both audio and video:

  1. Install loopback audio (free extension).
  2. Open the media you want to screen capture in your application (if it’s a browser, use Firefox or Chrome, not Safari). Start at least 5 seconds before where you want to start  – this will usually give time for the application to hide any playback controls which might be distracting. Don’t press play yet.
  3. Go to System Preferences/Sound. In the sound Output, choose Loopback Audio in the Output tab.

    At this point, you will hear no sound from any of your Mac’s applications, but don’t worry.
  4. Go to the QuickTime Player application; choose File/New Screen Recording.

    Click on the red record button.

    Then choose the screen you are recording (if you have multiple screens). 
  5. Go to the application that was set to play the video; press play (hopefully you queued up the video to play at least 5 seconds before the area you wanted to capture – this will usually give time for the application to hide any playback controls which might be distracting).

After you’re done recording:

  1. Stop the video in your application that was playing your video.
  2. Go back to QuickTime Player; hit the escape key on your keyboard to bring up the record controller, then click on the black square button (stop).

    Save your video file.
  3. Go to System Preferences/Sound. In the sound Output, change the preference back to Internal Speakers (or whatever was your original choice). You should be able to hear sounds now from your speakers.
  4. Go to your saved movie in QuickTime Player, and test out the sound. Trim the clip either in QuickTime Player or iMovie.