Added method:

	public static string FeedbackTypeToString (FeedbackFlags feedbackType);

Added property:

	public AudioUsageKind Usage { get; }

Added method:

	public virtual AudioAttributes.Builder SetUsage (AudioUsageKind usage);

Removed field:

	public static const int L;

Added property:

	public int ApiSince { get; set; }

public class IntDefAttribute : System.Attribute, System.Runtime.InteropServices._Attribute {
	// constructors
	public IntDefAttribute ();
	// properties
	public string[] Fields { get; set; }
	public bool Flag { get; set; }
	public string Type { get; set; }
}

public class IntDefinitionAttribute : System.Attribute, System.Runtime.InteropServices._Attribute {
	// constructors
	public IntDefinitionAttribute (string constantMember);
	// properties
	public string ConstantMember { get; set; }
}

public class StringDefAttribute : System.Attribute, System.Runtime.InteropServices._Attribute {
	// constructors
	public StringDefAttribute ();
	// properties
	public string[] Fields { get; set; }
	public string Type { get; set; }
}

Added property:

	public virtual RecognitionMode SupportedRecognitionModes { get; }

public class JavaTypeParametersAttribute : System.Attribute, System.Runtime.InteropServices._Attribute {
	// constructors
	public JavaTypeParametersAttribute (string[] typeParameters);
	// properties
	public string[] TypeParameters { get; set; }
}