From Options, you can set voice quality, rate, pitch, tone, volume and access other voice related controllers. In the main interface, you can insert the text and either read the whole document or only the selected text. It lets user apply special voice substitution list to improve the voice articulation.
Contrasting to other TTS Text-to-Speech programs, it offers a list of different voice qualities and other related controllers for altering voice parameters including the pitch, rate, shrillness, graveness according to your requirements.