Enable Drift Correction for any secondary devices to keep the audio streams in sync. Using Aggregate I/O Within Pro Tools
Since there is no external download link, you access the Aggregate I/O settings through the Audio MIDI Setup utility on your Mac. Open Finder and navigate to Applications > Utilities. Launch Audio MIDI Setup.
From the Playback Engine dropdown menu, choose Pro Tools Aggregate I/O. Click OK and allow Pro Tools to restart the session engine. Troubleshooting Common Issues pro tools aggregate i/o download
In the sidebar, you will see "Pro Tools Aggregate I/O" or "Aggregate Device."
Set the Clock Source to the device you trust most for timing to avoid "pops" and "clicks." Enable Drift Correction for any secondary devices to
List the you're using (e.g., Focusrite, Blue Yeti) Describe any error messages you're seeing
To make the most of this setup, you must manually select which hardware inputs and outputs are included in the virtual driver. Launch Audio MIDI Setup
Check the boxes next to the devices you want to use (e.g., Built-in Microphone, Display Audio, or external USB interfaces).
Missing Inputs: If a device isn't showing up, ensure it is plugged in before opening the Audio MIDI Setup utility.
Latency Issues: Aggregate devices can introduce slight delays. Keep your hardware buffer size low in the Playback Engine settings.