My Mac updated and now I lost my old audio driver. Now I have, _USB AUDIO CODEC (DEMO). My play back on logic XHas a beep every 30-40 seconds. How do i get rid of the demo driver and put a permanent driver in.

My Mac updated and now I lost my old audio driver. Now I have, "USB AUDIO CODEC (DEMO)." My playback on logic has a beep every 30-40 seconds. How do i get rid of the demo driver and put a permanent driver in?

Posted on Jul 19, 2018 10:37 PM

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6 replies

Jul 20, 2018 12:44 AM in response to PHAT ROB

Looks like your Mackie mixer is using some sort of a generic audio codec as a driver. What you can do is, close all applications, power off the mixer, and unplug its USB cable. Restart your Mac, after that plug Mackie back in and switch power on.


Also, after doing all that, could you open the Audio MIDI Setup utility (browse to Applications/Utilities or press Shift+Command+U while in Finder) and make a screenshot of Audio Devices window? It looks like this (depending on the devices you use, your might look different):


User uploaded file

Jul 20, 2018 12:04 AM in response to Radarhus

The Mac did a auto update. Mac OS High Sierra 10.13.6 is running now. v.5 was before this incident and running smooth. I'm using a Mackie Pro-fx 16 channel USB mixer. In Logic Pro X, Go preferences/audio and my regular audio driver is not there. The missing driver is labeled, "USB AUDIO CODEC". Now it says, "USB AUDIO CODEC (DEMO). When I record or playback Logic, there is a audio beep every 30 to45 seconds. I cannot find a audio driver for logic. I tried asio4all but it doesn't seem to load. No way to roll back the computer to a earlier date without time machine.

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My Mac updated and now I lost my old audio driver. Now I have, _USB AUDIO CODEC (DEMO). My play back on logic XHas a beep every 30-40 seconds. How do i get rid of the demo driver and put a permanent driver in.

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