- Connect your ZED mixer to your Mac via USB and power on the
- With Pro Tools 9 installed, open Audio MIDI Setup on your Mac. PT9 should have created a Pro Tools Aggregate I/O folder in the Audio Devices list. The ZED interface should appear as USB Audio CODEC in the list along with other audio devices in your system. Tick Use to enable the device in PT9. You may need to also tick Resample in order for the audio data settings to be compatible with your PT9
- Run Pro Tools 9 and create a new session with at least two audio tracks. Open the SETUP/Playback Engine window and select Pro Tools Aggregate I/O as the Current Engine. Click
- In PT9 click SETUP and then I/O. Select Output from the menu and the devices available should appear in a box labelled PTAI/O (Pro Tools Aggregate I/O). Here you can create a new output path if one doesn’t exist, name it (here it’s called ZED Stereo OUT) and tick it to enable. The output path can be set as stereo or mono channels as is
- Remaining in I/O Setup, click the Input tab. Again the input sources should appear for enabled devices in Pro Tools Aggregate I/O. Create a new path for the inputs and name as you prefer. Here we have a stereo input named ZED-Stereo Input. Note that mono channels can use one channel of a stereo input path. Make sure the path is ticked and click
- Select the inputs and outputs for your tracks in your session. Here the input for mono Track 1 is selected as the Left channel from the ZED USB
….and here the output for mono Track 1 is selected as the Left channel on the ZED Stereo USB interface. If the mono track is set to output to the ZED Stereo OUT in stereo, then the track Pan control will be activated.
- Finally check the interface and settings are working by recording some audio from the ZED mixer to PT9 and then play the audio back to the ZED afterwards. Always be wary of audio feedback loops with bi-directional interface connections which can cause high-level audio feedback if signals are routed back to themselves either in the mixer or in the software
