Loopback sends one stereo source from iD Control back to your computer as a stereo input. You can then record or stream audio from other applications, or bring system audio into your DAW.
On iD4+, Loopback is assigned to Inputs 21 + 22.
You can select the Loopback source by navigating to the Loopback routing page:
- Click SETTINGS at the bottom of the Side Nav
- In the Settings Window, select the ROUTING tab.
- Select the LOOPBACK tab.
You can select from the following sources to feed the loopback channels:
- Main Mix: The Main Monitor Mix created in the iD Control Mixer.
- Mix A – D: The independent mixes created in the corresponding Mix A – D panels.
- Virtual Thru: A stereo pair of virtual channels sent from your computer, bypassing the iD Control Mixer. Use Virtual Thru to loop back computer audio on its own, with no microphones or instruments.
By default, the Loopback source is set to Main Mix.
You can select a Loopback source by clicking on the node under the available source you wish to assign to Loopback. The selected node turns green indicating which source is assigned to Loopback.
To choose which virtual pair is used for Virtual Thru, click the Virtual Outs selector to the right of the Virtual Thru node and select any pair from Virtual Outs 1 + 2 to 23 + 24. By default, this is set to Virtual Outs 1 + 2.
To record Loopback in your DAW, create an audio track or Auxiliary track, and assign inputs 21-22 as the channel's input.
Keeping Loopback audio separate from the Main Monitor Mix
Send the computer audio to a virtual pair other than Virtual Outs 1 + 2, then select that pair as the Virtual Thru source:
- Application with selectable outputs: Choose the required output pair in the application's audio settings.
- macOS: Open Finder > Applications > Utilities > Audio MIDI Setup. Select iD4+, open Output > Configure Speakers, assign the required channels, then click Apply.
- Windows: Open Settings > System > Sound and select the required output pair for iD4+.