Modern text-to-speech (TTS) turns written content into clear, natural-sounding...

https://post-wiki.win/index.php/What_Makes_a_Voice_Assistant_Feel_Natural_Instead_of_Robotic%3F

Modern text-to-speech (TTS) turns written content into clear, natural-sounding audio. Apps use it to make information easier to access, helping people with reading difficulties or busy schedules