Related technical docs:
- AUAudioUnitPreset | Apple Developer Documentation
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The
AUAudioUnitPresetclass describes an interface for custom parameter settings provided by the audio unit developer. These presets often produce a useful sound or starting point. -
For more details on working with Audio Unit presets, see Audio Units - How to correctly save and restore Audio Unit presets. Note that the version 3 fullState property is bridged to the version 2 kAudioUnitProperty_ClassInfo API. Similarly, the version 3 fullStateForDocument property is bridged to the version 2 kAudioUnitProperty_ClassInfoFromDocument API.
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- Technical Note TN2157: Audio Units - How to correctly save and restore Audio Unit presets.