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Audio Unit - Apple Developer

    https://developer.apple.com/documentation/audiounit
    Overview The Audio Unit framework provides interfaces for hosting either version 2 or version 3 audio units and implementing version 3 audio processing plug-ins known as Audio Unit extensions. Developers implementing version 3 audio …

The Audio Unit - Apple Developer

    https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/AudioUnitProgrammingGuide/TheAudioUnit/TheAudioUnit.html
    The Audio Unit. When you develop an audio unit, you begin with the part that performs the audio work. This part exists within the MacOS folder inside the audio unit bundle as shown in Figure 1-2.You can optionally add a custom user interface, or view, as described in the next chapter, The Audio Unit View. In this chapter you learn about the architecture and …

Apple Developer Documentation

    https://developer.apple.com/documentation/audiotoolbox/auaudiounit
    Version 3 audio unit components can be registered in the following ways: Package the component into an app extension containing an AudioComponents Info.plist entry. The principal class must conform to the AUAudioUnitFactory protocol, which will …

App Extension Programming Guide: Audio Unit

    https://developer.apple.com/library/archive/documentation/General/Conceptual/ExtensibilityPG/AudioUnit.html
    An Audio Unit app extension gives users a convenient way to create or modify audio in any iOS or macOS app that uses sound, including music production apps such as GarageBand or Logic Pro X. An Audio Unit app extension has two main elements: an audio unit proper and a user interface (UI) to control the audio unit.

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