A&H QU 32 QU Series to OBS

This article will describe how to take a mix output from an Allen & Heath QU series desk / unit to OBS on Windows using the obs-asio plugin.

On the Desk

• Tap the “Setup” soft key
• IO Patch
• Tap USB Audio
• Tap on any of the outputs. I chose the 2 in the bottom left as they are in a nice square.
• Use the rotary dial on the desk to select your mix output. I recommend one of the stereo outputs. I chose 7-8 because 5-6 are used for something else in my setup.

On the iPad app

• Tap IO Patch
• USB Audio
• Scroll over to the 2 mix outputs you want to use and under 17 & 18 or whichever outputs you want to use as output. I am using Mix 7-8.

Windows Setup

• Install the Qu Windows ASIOTM/WDM Driver
• Plug in the desk using USB B
• Select your QU desk from the A&H Software (If not already selected)

• You can change the bitrate if you need to

• Install the plugin from this repo See separate instructions
• Open OBS
• Right click on sources in OBS
• Select Add > ASIO Input capture

• Select “Create New” and give it a name. I called mine “Qu32 Mix 7-8”

• Select “QU Asio Driver”
• Format Stereo (Although you can do 7.1 Surround Sound if you want)
• Choose Channel 17 & 18 (Or whatever you chose)

• Click OK

If you want 7.1 surround sound

Advanced Audio Properties

Input volume

The input volume was too low for me so I bumped it up to +25db.

• Click on the cog icon
• Choose “Advanced Audio Properties”

Sync offset

• I had to set the sync offset to 250ms because there’s a delay between my network camera and OBS. You probably won’t need to do anything like this but it’s an option.

Listen to what you're recording

• If you want to be able to listen to what you’re recording, you can Select “Monitor & Output” under “Audio Monitoring” and plug in some headphones. Be careful though because if you’re outputting to channels on the desk you’ll experience digital feedback.

Other info / setup options

You can record each input from the desk as separate mix inputs if you want