Use human reader voices for the read aloud.
Please use human readers for the story passages. The computerized voice runs over punctuation, mashes words together, and puts unnatural breaks in sentences. For example it sounds like: "Where are we going?"........."asked John he sat"........"down in his chair."
Students who can read to themselves have the advantage of "hearing" the story read fluently, which aids their comprehension. Students who actually NEED the read aloud have to listen to it read dysfluently, and that's so unnecessary and unfair. I've had students with IEPs take their headphones off and say they would rather wing it than hear the "annoying" robot voice. There's no reason to model dysfluent reading for them.
As a teacher who encourages dyslexic kids to become audiobook readers - this accommodation doesn't help.