It should be noted that developers can already add multiple voices to their skills, but it's a more complex process that involves recording a voice as an audio file. By tapping on the "assist app" under Assist &Voice Input, you can select Alexa as the default voice assistant app.
Amazon is giving this choice to developers through their Polly text-to-speech service. Just like with Siri and Google Assistant, Android smartphone users will be able to talk to Alexa using the Alexa app on their smartphones.
To use an Amazon Polly voice instead, developers would use Structured Speech Markup Language (SSML) and then specify which voice they want with the "voice name" tag. "It's as easy as that".
The bank has introduced three Alexa skills that enable customers to use voice commands to access information such as trading insights or ideas and content from the bank.
With Google expanding features in so many of their products it is no surprise to see them beginning to consolidate them all to one location. Amazon will provide more information to those who are selected. Skills that drive high customer engagement can also lead to a payday for developers through Alexa Developer Rewards. Now, developers can leverage Polly to add additional natural-sounding voices to their skills. Chiefly, it's the text-to-speech service which helps create the scripts for Alexa skills.