garageband
What to do when getting Error: Failure when trying to synchronize audio and midi
User profile for user:
bailier
User level:
Community Specialist
Hello prezi user.
Welcome to Apple Support Communities. We understand that you’re getting an error when trying to synchronize audio and midi using GarageBand for Mac. We’re happy to help.
Please try the steps here: GarageBand for Mac (v10.0): Unexpected behavior with Audio Units plug-ins - Apple Support
We also checking these settings to ensure that the settings are the want you want them set. System Preferences > Sounds > Input and select your microphone and System Preferences > Sounds > Output > Internal Speakers
Let us know if you have further questions.
Take care.