[dointheatl]

Because reading from a script for five minutes is likely to require multiple takes for someone who isn't a practiced voice actor, while text to speech requires no extra effort on their part?

[thaumasiotes]

> Because reading from a script for five minutes is likely to require multiple takes for someone who isn't a practiced voice actor

This depends on how much you can tolerate speech errors. Most listeners will gloss over them, preferring the human voice to the speech synthesizer while not even really noticing the errors.