title: What are the acceptable strings for nsspeechsynthesizer's voiceName property in order to change the voice?
body: <p>I'm working through a tutorial in conjunction with Apple documentation and I'm attempting to change the voiceName of the NSSpeechSynthesizer however its init function says it accepts a string but I'm not sure of how to look up in the documentation to find the acceptable strings in order to change the voice.  <a href="https://developer.apple.com/documentation/appkit/nsspeechsynthesizer/1448381-init" rel="nofollow noreferrer">Apple NSSpeechSynthesizer Initialization Documentation</a></p>