If your computer’s speech sounds too computer generated, or if it speaks too quickly, you can adjust the settings.
Hit Start, type “Narrator” into the search box, and then click the result.
Click the small down arrow at the right of the Quick Access toolbar, and then click the “More Commands” option.
In the “Word Options” window, click the “Choose Commands From” dropdown, and then choose the “All Commands” option.
On the list of commands, scroll down, and then select the “Speak” command.
Click the “Add” button, and then click “OK” to close the window.
A progress bar appears on screen to let you know how far through the selection you are.
You can also choose other options by returning to the View Read Out Loud menu.
You can also choose different voices you have installed.
When you’re done, close the Narrator tool (so that it’s not reading everything to you) and go test it out in your PDF or Word document.