Apple adds two brand new Siri voices and will no longer default to a female or male voice in iOS 

Apple adds two brand new Siri voices and will no longer default to a female or male voice in iOS Apple is adding two new voices to Siri’s English offerings, and eliminating the default “female voice” selection in the latest beta version of iOS.

Source: Apple adds two brand new Siri voices and will no longer default to a female or male voice in iOS – TechCrunch