speak( ) – Adds the Utterance object to the end of the speaking queue
cancel( ) – Immediately stops any speaking and flushes the queue.
pause( ) – Stops any speaking and freezes the queue.
resume( ) – The opposite of pause. Continues the speaking in progress.
getVoices( ) – Returns an array of SpeechSynthesisVoice objects.
Adding Voice to WordPress
Presented to VoiceLunch/US, March 25, 2022