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VST 3 - AudioUnit v3 Wrapper

On this page:

• Introduction
• How does it work?

Related pages:

• Audio Unit v3 Plug-ins | Apple Developer Documentation

Introduction

Helper Class wrapping a VST 3 plug-in to an Audio Unit v3 plug-in.

The VST 3 SDK comes with a helper class which wraps one VST 3 audio processor and edit controller to an AU v3 plug-in.

The wrapped AudioUnit does support MPE when the VST 3 plug-in has Note Expression support. You need to implement Steinberg::Vst::INoteExpressionPhysicalUIMapping to map your Note Expression to the limited three expressions defined by MPE.

How does it work?

• Structure:
  • App (container app which initializes the AU through small Playback Engine)
  • Extension (extension which is loaded by hosts, also initializes the AU)
• How to use the VST 3 → AU v3 Wrapper with the sample code:
  • make sure you have correct code signing set up
  • build & run targets
• How to use the VST 3 → AU v3 Wrapper with your own VST plug-in:
  • duplicate either the folder again_auv3 or note_expression_synth_auv3 in public.sdk/samples/vst, rename it and edit CMakelist.txt to add your sources, resources and modified target names etc.
  • open audiounitconfig.h and change the definitions in this file.
  • also change the other files in that folder to your requirements. Code signing is required, but you can build and test with a developer only identity.
  • build & run targets