Amazon Polly speech synthesis is an artificial intelligence service that converts text into realistic voice. Amazon Polly can provide dozens of realistic voices in many languages, so you can choose the most appropriate voice to build applications that have voice power for many different countries / regions. Natural sound
Adjust the speed, tone, and volume of the language
Amazon Polly supports voice synthesis markup language (SSML), a XML based W3C standard markup language that is suitable for speech synthesis applications and supports sentences, accents and intonation using general SSML tags. This flexibility can help you create realistic speech, so as to attract and maintain the attention of the audience.