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2.1. Install and Launch

Install Harmonic DJ using the package for your platform. The application and plug-ins are one matched installation and must use the same Harmonic DJ version.

  • macOS includes the universal standalone application, VST3, Audio Unit, AUv3, and AAX. The AUv3 extension is contained inside APU Harmonic DJ.app, so installing and retaining the application also installs the AUv3.
  • Windows includes the standalone application, VST3, and AAX in both x64 and x86 packages.
  • Linux x64 includes the standalone application and VST3. Linux plug-in host qualification is deferred; the current release-validation focus is macOS and Windows.

Keep the standalone application installed even if you primarily use a plug-in. It is a required installer component because it owns the shared Library database, scanning, and analysis work used by every plug-in instance. A host may scan the plug-in without opening the application; opening a plug-in editor connects to the Library and can start the application with its window hidden when necessary. Choose Manage in App to show that same application process for Library changes.

The application starts in Community unless a Pro trial or paid license is active. Community does not require an account or activation. Open About when you want to start a Pro trial or activate an existing license. Visit the APU Harmonic DJ product page to see current Pro pricing or purchase Pro.

On Windows N and KN editions, Harmonic DJ requires the Microsoft Media Feature Pack. The installer checks for the underlying Media Foundation components and can open Windows Optional Features when they are missing.