No Sound in Logic Pro from a UAD Apollo Twin: Check the Console I/O Matrix

A composer couldn’t record his guitar into Logic Pro through his UAD Apollo Twin because UA Console’s I/O Matrix was blank.

He’d booked the session because he couldn’t record his guitar or mic into Logic Pro through the Apollo. The first problem was that UA’s software couldn’t see the Apollo at all. I’ve written up the first part of this session separately, in getting the Apollo recognised at all. Once that was sorted, Console loaded and showed the Apollo as connected, but he still couldn’t record. We made a new Logic project with an audio track and tried a test recording, and no signal came from Console into Logic.

I checked Logic’s settings first, and the Apollo was selected as the audio device for both input and output. So Logic was looking in the right place, and I thought the problem was more likely to be in Console.

Back in Console

When he played his guitar, the meter on Console’s channel strip for analog input 1 moved, so the signal was getting into the Apollo and not going on to Logic. I looked in Console’s settings at the I/O Matrix, and it was blank.

UA Console settings, I/O Matrix tab: mode Custom, preset Untitled, and every input and output channel showing OFFLINE. — Console’s I/O Matrix during the session: a custom, untitled setup (boxed) with every channel showing OFFLINE. Choosing the Default preset put it back.

The I/O Matrix routes Console’s signals on to your recording software, so with it blank the guitar reached Console and went no further.

I’ve seen the I/O Matrix cause the same symptom on an Apollo Solo where input 1 had been switched to a virtual channel.

When I asked, he told me he’d been changing things in the I/O Matrix himself while trying to troubleshoot the problem, which is a reasonable thing to try when nothing works.

I chose Default from the I/O Matrix presets, and that was the end of the troubleshooting. The problem he’d booked the session for, both parts of it, took about 20 minutes.

We used the rest of the session to look over his plugins, and I showed him Logic’s built-in drum replacement, which saved him buying a separate plugin to do the same job.

If you’ve been changing Console’s I/O Matrix while chasing a problem and your DAW now gets no signal, choosing the Default preset is how I got this one working again.

Book a session (£90)

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   Justin Bikram 
 
 
 
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Rick Grant
  
 
        
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Back in Console

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