TTS engines have been modeled on our voices in English, Russian, Neutral Spanish, Castilian Spanish, French, German, Italian and Australian English, with many more in development. Amazon Polly is a service that turns text into lifelike speech, allowing you to create applications that talk, and build entirely new categories of speech-enabled products. Justin ivona voice AI Voice is a computer generated voice powered by machine learning and can generate speech from text with natural intonation and real accents.