play

Resume the playback of the current active utterance if any exists, otherwise the next utterance from the utterance queue. The implementation must use callbacks.onUtteranceEnd() when each utterance has finished speaking.

The implementation should also call callbacks.onUtteranceBoundary() to indicate which part of the utterance is currently being spoken to allow the SyncMediaPlayer to get a more accurate timeline position for things like automatically turning pages and resuming playback and for highlighting.