TTVoiceOver (short for Text-To-Voice-Over) is an easy-to-use Windows software utility for creating .WAV audio voice-over narration for use in Videos or Microsoft PowerPoint presentations using Windows Text-To-Speech.

When numerous audio narrations are needed in multiple PowerPoint or Video projects, TTVoiceOver has a big advantage over many other general-purpose "text reader" software applications:

Project Organization.

Additionally, TTVoiceOver has an excellent Phonetic Replacement feature which ensures that the text-to-speech reader pronounces all of the words in your project the way you want them to be pronounced.

For an example of how it works, watch the following video which was created using PowerPoint with narrations generated by TTVoiceOver: