You can now adapt Amazon Polly’s Text-to-Speech (TTS) voices to the context of your customer conversation. For example, the TTS voice Matthew can be adapted to be more relatable for a welcome prompt and take on a formal persona when informing customers of their bank balance. These speaking styles allow businesses to design more engaging and relatable interactions. The Conversational and Newscaster speaking styles are currently available with the Joanna and Matthew voices.
Source:: Amazon AWS