|| Contains data required by engines to synthesize speech.
|| Synthesizes speech from text for immediate playback or to create a sound file.
|| Constants and parameter names for controlling text-to-speech.
|| Information about an installed text-to-speech engine.
|| Abstract base class for TTS engine implementations.
|| Listener for events relating to the progress of an utterance through the synthesis queue.
|| Characteristics and features of a Text-To-Speech Voice.