Additions and changes to the Twilio platform
On October 26th 2021, the following Amazon Polly Neural voices will be set to Conversational speaking style by default. Amazon made Conversational speaking style default on June 28, 2021 for all new neural voices available at Twilio, deprecating the neutral speaking style. This change brings Conversational speaking style to the remaining set of Polly Neural voices used by Twilio.
Voices: Polly.Matthew-Neural (en-US), Polly.Joanna-Neural (en-US), Polly.Amy-Neural (en-GB) and Polly.Lupe-Neural (es-US).
Note there is no impact to any functionality or interface. As the neutral speaking style has been deprecated by Amazon, this change is permanent (no revert back option available). Compared to the legacy neutral style, the Conversational speaking style feature generally makes neural voices sound more friendly and expressive.
For more information about Twilio Text-to-Speech with Amazon Polly visit our docs.