Amazon Polly

A service that turns text into lifelike speech, allowing you to create applications that talk, and build entirely new categories of speech-enabled products. The text-to-speech service uses advanced deep learning technologies to synthesize speech that sounds like a human voice. With dozens of lifelike voices across a variety of languages, you can select the ideal voice and build speech-enabled applications that work in many different countries. (Source: Alexa glossary)