Recording internal audio (system sounds) on Mac requires additional setup due to macOS security restrictions. This comprehensive guide walks you through multiple solutions, from free tools to professional software, ensuring you can capture all audio in your screen recordings.
Understanding Mac Audio Architecture
macOS separates input devices (microphones) from output devices (speakers). Screen recording tools can only access input devices by default. System audio plays through output devices, invisible to recording software. Virtual audio drivers bridge this gap by routing output to input. This security design protects user privacy and prevents malicious audio capture.
BlackHole - Free Solution
Download BlackHole from the official website (free, no registration). Install the package - requires admin password. Open Audio MIDI Setup from Applications/Utilities. Create Multi-Output Device combining BlackHole and your speakers. Set this as system output before recording. In recording software, select BlackHole as microphone input.
Setting Up Audio MIDI Setup
Click + button and select 'Create Multi-Output Device'. Check boxes for BlackHole 2ch and your regular speakers. Ensure 'Drift Correction' is checked for BlackHole. Master Device should be your regular audio output. This setup lets you hear audio while recording. Name the device for easy identification.
Recording with QuickTime
Open QuickTime Player and select New Screen Recording. Click arrow next to record button. Select BlackHole 2ch as microphone. Start recording - system audio is now captured. Remember to reset audio output after recording. Save recording in your preferred format.
OBS Studio Alternative
OBS offers more control over audio sources. Add Display Capture for screen recording. Add Audio Output Capture for system audio. No virtual audio driver needed on newer versions. Mix multiple audio sources with individual volume controls. Stream or record with professional features.
Loopback - Premium Solution
Loopback by Rogue Amoeba ($99) offers advanced routing. Create virtual devices with custom configurations. Route specific app audio without capturing others. Professional features for podcasters and streamers. More intuitive interface than free alternatives. Includes excellent customer support.
ShotVu - Simplest Solution
ShotVu captures system audio automatically in browser. No installation or configuration required. Works immediately without technical setup. Perfect for quick recordings and tutorials. Includes screen and webcam recording. Instant sharing without rendering delays.