speak
Speaks raw SSML directly, bypassing the DSL and preset system.
The ssml string should be a complete SSML document (with <speak> root) or a fragment that the TTS engine can interpret.
Return
SpeechResult indicating success or failure.
Parameters
ssml
Raw SSML markup to speak.
queue
TextToSpeech.QUEUE_FLUSH (default) or TextToSpeech.QUEUE_ADD.