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Studio One: Audio I/O Routing

PreSonus Studio One Tips & Techniques By Robin Vincent
Published February 2022

The Audio I/O setup window is where you create input and output tracks, and assign them to your audio interface’s physical I/O.The Audio I/O setup window is where you create input and output tracks, and assign them to your audio interface’s physical I/O.

We show you how to configure your inputs, outputs and audio routing in PreSonus' flexible DAW.

When it comes to routing audio through your gear, Studio One can act as a hub and routing matrix. You can control exactly where your audio is going and define where it comes from. You can create effects loops, monitoring destinations and internal routings to flow tracks and inputs, outputs and buses all over the place. In this workshop, we’re going to get into the audio settings and routings to see if we can discover ways of handling your audio that perhaps you haven’t considered before.

Setting Up An Audio Interface

Before any routing can be managed, Studio One needs to know what audio interface or audio system you are using. When Studio One boots to the home screen, you’ll find these settings accessible in the middle at the bottom. Click on it to bring up the audio device settings window.

In Mac OS you can set a playback and recording device, whereas in Windows you simply choose a single audio device from the drop‑down list. The list should contain all currently installed audio devices, which in Windows will include the regular Windows sound engine for using your on‑board sound facilities, as well as any ASIO‑driven audio interfaces. If you are using one of PreSonus' own audio interfaces, then you’ll be treated to a neat little photo of it. Choose the one you want to use for this session.

Once chosen you can specify the ‘Device Block Size’, also known as the buffer size, which will affect the input and output latency of your audio system. We’ll come onto latency considerations in a moment. You can usually also launch your audio interface’s own control panel from here, although not all audio interfaces seem to support this button.

It would make sense for Studio One to give you access to the input/output configuration of your audio interface at this point, but it doesn’t. You can’t get into those settings until you’ve created a project (Song). While that may seem odd, what it means is that the audio setup, which defines which inputs and outputs are active and how they are connected, are all saved with your project rather than dictated globally. That’s probably worth the extra clicks it takes to get to those settings.

Studio One lets you route the output of one track into the input of another, which brings up all sorts of interesting possibilities.

Song...

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