public static AudioConverter Create (AudioStreamBasicDescription sourceFormat, AudioStreamBasicDescription destinationFormat, AudioConverterOptions options);
public static AudioConverter Create (AudioStreamBasicDescription sourceFormat, AudioStreamBasicDescription destinationFormat, AudioConverterOptions options, out AudioConverterError error);
public static void Prepare (AudioConverter.PrepareCompletionCallback completionCallback);
public static void Prepare (uint flags, IntPtr ioReserved, AudioConverter.PrepareCompletionCallback completionCallback);

public int CountUserData (AudioFileChunkType chunkType);
public AudioFileError GetUserData (AudioFileChunkType chunkType, int index, ref int size, IntPtr userData);
public AudioFileError GetUserData (AudioFileChunkType chunkType, int index, long offset, byte[] data, out int size);
public AudioFileError GetUserData (AudioFileChunkType chunkType, int index, long offset, ref int size, IntPtr userData);
public AudioFileError GetUserData (uint userDataId, int index, long offset, byte[] data, out int size);
public AudioFileError GetUserData (uint userDataId, int index, long offset, ref int size, IntPtr userData);
public int GetUserDataSize (AudioFileChunkType chunkType, int index);
public AudioFileError GetUserDataSize (AudioFileChunkType chunkType, int index, out ulong size);
public AudioFileError GetUserDataSize (uint userDataId, int index, out ulong size);

[Serializable]
public enum AUVoiceIOOtherAudioDuckingLevel {
	Default = 0,
	Max = 30,
	Mid = 20,
	Min = 10,
}

[Serializable]
[Flags]
public enum AudioConverterOptions {
	None = 0,
	Unbuffered = 65536,
}

public virtual Foundation.NSData[] MigrateFromPlugin { get; }