Using Positive Grid’s Bias FX Standalone with a UA Apollo Interface

Greetings, Ladies & Germs!

For any of you out there who might be using Positive Grid’s Bias FX software with a Universal Audio Apollo interface, you may have come across difficulty getting signal or finding the appropriate I/O settings to use. Here’s why and how to fix it!

Essentially, the way an Apollo interface’s routing is set up (I am referring to the rack models and this may not pertain to the Twin models), it adds a “null slug” in the first two I/O slots, so that means all your inputs are bumped two spaces over (this happens automatically within Avid ProTools once it’s set up the first time). However, when using the Apollo as your input with the Bias FX standalone app, this is not automatically accounted for (I pulled a good portion of my hair out before I fully realised what was happening!).

That being the case, here are three steps to properly set this up:

Open your UA Console application (V2-firewire is pictured). You’ll see that I have PT Mode toggled. For the sake of consistency (and for the following steps) leave it on:








Next, open your Bias FX app and go to the “audio settings” menu. Make sure that you only have inputs 3 and 4 selected. Via PT Mode in the UA Console application, inputs 3-4 will directly correspond to inputs 1-2 on your Apollo hardware interface:

Now, plug your instrument cable into Hi-Z jacks 1-2 on your hardware interface and you should get some input signal on the “test” meter:

If you have any further questions on this topic, please feel free to email me!

Thank for reading and I hope you found this information useful!

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