Tonight I Googled for free text to voice software. I wasn't expecting to stumble upon a professional program that would read aloud my WIP, but stumble I did. Second listing from the top was a link to Natural Reader Text to Voice Software. The welcome page began speaking as soon as it loaded. On the left side of the page are links to Natural Readers abilities and I tried them all. The free program was excellent for the use I wanted it for. After downloading the program I opened it up, wondering how I was going to hear my chapters read out loud.
On the bottom of the main control panel is a small button titled Go to miniboard. I selected it and a small control panel opened up. Holding the mouse button down, I moved it to the top of my page. Next I opened my MS Word Document and selected all of the text in that chapter. Clicking on the start button (on the miniboard) I was surprised to hear my text change to voice. I sat back and listened as the ladies voice read my script. I did notice a few places where commas were not needed so I edited it on the spot. My editing did not interfere with the text to speech process. One thing this program did was to pronounce a word incorrectly, or so I thought. After looking at the word I realized that I left out an R. This changed the meaning of the word. Funny, neither I nor my beta readers ever found this mistake.
There is also a professional version of this text to voice translator. The information for this and the free one is on their web page. This is a great editing tool.