Can't connect iO2 express interface, tried everything. Someone please help

My alesis iO2 express interface can be used for output and works fine but logic can't seem to understand that a microphone is connected to it and is working. It works and records fine in GarageBand but logic won't pick up any signal on it. I've tried everything and nothing works

iMac (21.5-inch Late 2009)

Posted on Jan 5, 2014 7:42 PM

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9 replies

Jan 7, 2014 3:33 AM in response to Kyleh990

There is a workaround for the issue, but I haven't seen Alesis users yet report succes with it. Or failure.


The workaround:


Quit Logic.


Open Audio MIDI Setup, it can be found in Applications>Utilities.

In AMS, open the Audio window.

In the audio window, click on the + box, and select Create Aggregate Device:

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Now select this device in the list on the left, and on the right hand choose the in- and outputs of your interface, AND the built in microphone:

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Next, important, choose the Built-in Microphone as the Master Clock.


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Now you can quit AMS (no need to Save), start Logic and select the Aggregate Device as In- and output.

This is reported working for some M-Audio interfaces and some USB mics (Blue Yeti). I have tested it with two TI chip based 16 bit interfaces (Ion and Behringer UCA200), which did not work.

Reports about succes or failure are welcome in this thread.

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Can't connect iO2 express interface, tried everything. Someone please help

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