Rosetta 2 enables a Mac with Apple silicon to use Audio Units, VST and VST3 plugins built for a Mac with an Intel processor.
Audio Units (AU), VST, VST3 Plugins with Rosetta 2

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If you need to install Rosetta on your Mac

Rosetta 2 enables a Mac with Apple silicon to use Audio Units, VST and VST3 plugins built for a Mac with an Intel processor.

Rosetta 2 enables a Mac with Apple silicon to use Audio Units (AU), VST and VST3 plugins built for a Mac with an Intel processor.


 

Although Apple Silicon M1, M1 Pro and M1 Max chip processors are currently used in latest-generation MacBook Air, MacBook Pro, Mac Mini and iMac models, the company has started the transition from Intel x86-64 processors to their own custom ARM processors. With the macOS v11.3 Big Sur has included Rosetta 2, a software which permits many applications compiled exclusively for execution on x86-64-based processors to be translated for execution on Apple ARM processors.

  


Installing Rosetta


If you have a Mac with Apple silicon, you are asked to install Rosetta the first time you open an app built for an Intel-based Mac. Click Install, then enter your user name and password to allow installation to proceed.

Alert: To open app, you need to install Rosetta. Do you want to install it now?

AU, VST, VST3 plugins with Rosetta 2 enables a Mac with Apple silicon to use Audio Units, VST and VST3 plugins built for a Mac with an Intel processor. Although Apple Silicon M1 chip processors are currently used in latest-generation MacBook Air, MacBook Pro, Mac Mini and iMac models, the company has started the transition from Intel x86-64 processors to their own custom ARM processors. With the macOS v11.3 Big Sur has included Rosetta 2, a software which permits many applications compiled exclusively for execution on x86-64-based processors to be translated for execution on Apple ARM processors.

  

After installing Rosetta, it is available to any other apps that need it, so you will not be asked to install it again. If you choose not to install Rosetta now, you will be asked again the next time you open an app that requires Rosetta.


Using Rosetta


Rosetta is not an app that you need to open. Rosetta works automatically in the background whenever you use an app built only for Mac computers with an Intel processor. It translates the app for use with Apple silicon.

In most cases, you won't notice any difference in the performance of an app that needs Rosetta. But you should contact the app developer to inquire about a version that can natively use the full power and performance of Apple silicon.

  


Which of your apps need Rosetta?
 

You can use Get Info to identify apps that need Rosetta or can use Rosetta:

  1. Select the app in the Finder.

  2. From the File menu in the menu bar, choose Get Info.

  3. See the information labeled Kind:
     

- Application (Intel) means the app supports only Intel processors and needs Rosetta to work on any Mac with Apple silicon.


- Application (Universal) means the app supports both Apple silicon and Intel processors, and uses Apple silicon by default.
 

For universal apps only, the Info window includes the setting “Open using Rosetta.” This setting enables universal apps such as web browsers or email apps to use plug-ins, extensions, and other add-ons that haven't been updated to support Apple silicon. If a universal app doesn't recognize an add-on that you installed for the app, you can quit the app, select this setting, and try again.

  


 

 

Audio Units™ is a trademark of Apple Inc.

VST is a trademark of Steinberg Soft- und Hardware GmbH

Mac™ is a trademark of Apple Inc., registered in the U.S. and other countries.

macOS is a trademark of Apple Inc., registered in the United States and other countries



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