Text to speech
Text to speech (TTS) is the use of software to create a sound output in the form of a spoken voice. The program that is used by programs to change text on the page to an audio output of the spoken voice is normally a text to speech engine. Blind people, people who do not see well, and people with reading disabililties can rely on good text-to-speech systems. That way they can listen to pieces of the text. TTS engines are needed for an audio output of machine translation results.