It can also mean a third-party Audio Units plug-in might be damaged, or it might not be compatible with your version of Logic Pro. If Logic Pro opens, you might need to update or service your external audio interface. Open Logic Pro and immediately press and hold the Control key before a project opens. If you aren’t using an external audio interface, try bypassing third-party Audio Units plug-ins.īack to top Open Logic Pro without audio input and output If the project opens and plays back properly, you might need to update or service your audio interface. Open and play back a project that's been experiencing issues. Open Logic Pro, then choose Logic Pro > Settings (or Preferences) > Audio > Devices.Ĭhoose Built-In Output from the Output Device pop-up menu.Ĭhoose Built-in Microphone (or Built-in Input, depending on your computer) from the Input Device pop-up menu. Unplug your external audio interface from your Mac. If you’re using an external audio interface, try using the built-in audio on your Mac instead of the interface. Contact the manufacturer for support.īack to top Use built-in audio with Logic Pro If the issue only occurs when a particular external device is connected, you might need to update or service the device. If an update is available, follow the manufacturer’s instructions to update the device or software.ĭisconnect external devices-such as MIDI devices and audio interfaces-from your Mac one at a time. If you're using an external audio interface, MIDI interface, storage system, control surface, or plug-in not made by Apple, make sure that it’s compatible with the latest version of Logic Pro. If a Logic Pro update is available, click the Update button to download and install it.īack to top Check device and software compatibility Open Logic Pro without audio input and outputĬhoose Apple menu  > App Store, then click Updates in the toolbar. Try these steps in orderĪfter trying each step in this list, test Logic Pro again to see if you've fixed your issue. Before proceeding, make sure to back up the Logic Pro app.

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