Things are much simple now. On Mac, redirecting the audio stream can easily be done with the help of an app.
Soundflower is a kernel extension for macOS designed to create a virtual audio output device, which can then be used to capture the output audio stream as an input channel in other apps. Click on the Record button, and drag the area of the screen you want to record or simply click to start recording the whole screen immediately.
With the recording in progress, perform the intended operations. As intended, the recorded movie would have captured the system audio along with on-screen activities.
Now play your recording using your preferred media player and verify that the system audio was recorded. You just need to use a separate audio recording app to capture the output stream redirected by Soundflower. In QuickTime Player, you can essentially follow the similar steps as provided for screen recording with system audio, to record system audio from your Mac. The app gives you better post-processing options after the recording is completed.
For instance, you could trim out the non-essential parts by referring to the waveform, before you export the audio file.
Soundflower for Mac - Download
The exporting options, too, are more superior in Audacity compared to QuickTime Player. In QuickTime, you only get to export the audio as an M4A file.
Audacity supports a wide range of audio formats that you can export to. Note: Audacity needs an external encoder to export audio into MP3 format.
Record system audio on Mac with Audition
You can optionally add voiceover to the recording too. The screen recording option in Quicktime is a useful feature for you to record a part of your screen or your entire screen in high quality for whatever purpose. Once downloaded, open the DMG file, hold down the Control key on your keyboard, and open up the installer. Install the addon.
Initially, you might face an error in the setup, as the Soundflower installer is not signed. We recommend restarting your system after the installation.
Once you have Soundflower installed, simply follow the guide below to record system audio in your screen recording:. Before starting your recording, we need to change the system audio output from the default speakers to our newly installed sound card. To do this, open up System Preferences and click on Sound.
From the Output pane, select Soundflower 2 ch as your output. Soundflower is indeed a handy tool to quickly include system audio output on your Quicktime recordings.
Recording internal sound with Audition
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