As part of its preview of iOS 17 accessibility updates coming this year, Apple has announced a pair of new features called Live Speech and Personal Voice. Live Speech allows users to type what they want to say and have it be spoken out. Personal Voice, on the other hand, is a way for people who are at risk of losing their ability to speak to create and save a voice that sounds like them. Apple says it’s designed for people at risk of losing their ability to speak, such as those with a recent diagnosis of ALS.
https://9to5mac.com/2023/05/16/apple-personal-voice-creation-feature-ios-17/