How to record audio from computer using Record Audio tool

Information

To record the audio from the computer as a source using Record Audio tool it's required to install additional sound driver. Perform steps below to complete the procedure:

1. Open Record Audio tool preferences by pressing cogwheel button near its icon.
2. Change Record from: option to Computer
   
3. Once prompted press Install button to initiate additional sound driver installation then enter Mac password to proceed
   
4. After the installation is finished the following window will appear suggesting restarting the Mac. Unless you restart the Mac the recording audion from computer will be impossible due to the absence of the required sound driver.
   
5. After restarting the Mac start recording the audio from the computer using Record Audio tool.