I have two choices for the voice, male and female. I tried the male voice, but it also seems to carry an inflection. I tried toggling between the two and it does not change.
I get the same result after exiting Word and restarting, also with other documents, after rebooting, and further with a full system shutdown and restart. It seems stuck in this voice mode now.
I did not alter any settings during this time when it changed. I was simply reading a document, then from one paragraph to another, it altered its tone. I recall stopping the read aloud thing briefly and returning back to the earlier paragraph, where it seemed to use the original voice, but after a while of using the new voice, it continued this way, even if I put it back up to that earlier paragraph where it last used the original voice. Now it uses only that one style of voice.
It wouldn't be so bad, if I could actually assign it to use a voice like this for certain paragraphs, as I'm reading through a book I wrote and might have characters speaking in different tones. But having this "happy" tone all the time is distracting for the context of the text. And right now, I'm trying to proofread the thing, and don't need the voice pronouncing the lines as if it's having a romance with my work. (hehe)