Let me show you how
Download Kindle for PC with Accessibility Plugin from Amazons website.
http://www.amazon.com/gp/feature.html?ie=UTF8&docId=1000632481
In order to use the text-to-speech feature, an external screen reader program must be installed and running on the Windows PC. Tested screen readers include: JAWS and NVDA.An external screen reader is used to read aloud menus and navigation items, while book text is read by a built-in text-to-speech engine.
I just use Microsoft Narrator, on Windows 7 I open the Start menu, and type into the search bar Narrator. With both Narrator and The Kindle for PC application open, I open an ebook, then all I do is press ctrl+r to start the text to speech.
The voice sounds the same as it does on the Kindle Touch.
These are the keyboard shortcuts
http://www.amazon.com/gp/help/customer/display.html/ref=amb_link_355061182_1?ie=UTF8&nodeId=200608290&pop-up=1&pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-5&pf_rd_r=0H3D0EH673B5HA1214Y6&pf_rd_t=1401&pf_rd_p=1387024402&pf_rd_i=1000632481
См. статью: Did you know you can use the text to speech feature on Kindle for PC?