Go to the Output tab and select the same 'Soundflower (2ch)' option as you did in QuickTime Player. Then launch System Preferences and go to the Sound settings. In the QuickTime Player window, click the down arrow to the right of the record button and select 'Soundflower (2ch)' as your input. Download and install the utility Soundflower requires you reboot your system after installation for it to work.Īfter your machine reboots, open QuickTime Player and start a new screen recording. It is a free piece of software for Mac OS X by Cycling74 that will let you route system audio within your Mac. When a situation arises where you want to record the audio along with your screen recoding on your Mac, you could try raising the volume on your speakers and hope that a built-in microphone captures that audio, but that's far from elegant. Quick tutorial on Soundflower in Quicktime from CNet It is extremely good, but comes at a price. Rogue Amoeba have always had their own system for intercepting Mac audio & routing it to chosen destinations, but their app, Audio Hijack, is not free ($50) This has been traditionally done using a freeware app called Soundflower - originally by Cycling 74, taken over by Rogue Amoeba but not developed or supported further. To record 'in-computer' sound, you need software that can re-route audio within the Mac itself - to make it think an output is actually an input. To add external audio sources, you need to make sure the correct input is assigned before you start the recording

Osx screen recording with sound