Initializes an audio processing graph.
- iOS 2.0–12.0Deprecated
- macOS 10.0–10.14Deprecated
- Mac Catalyst 13.0+
- tvOS 9.0–12.0Deprecated
A result code.
Calling this function calls the
Audio function on each opened node or audio unit that is involved in a interaction. If a node is not involved, it is initialized after it becomes involved in an interaction.
A graph must be opened before it can be initialized.