make math audio

Wanting to make audio bites for quick reviews, or anything, between classes or while doing something?
It's probably not worth the time; yet, here are a few substitutes:

1. http://math.stackexchange.com/questions/348697/learning-mathematics-using-only-audio
2. http://www.learnoutloud.com/Catalog/Science/Mathematics
3. http://ocw.mit.edu/courses/mathematics/

• Software
• http://www.readspeaker.com/readspeaker-launches-web-based-math-audio-reader-for-publishers-to-make-their-educational-content-more-accessible/
• https://www.dessci.com/en/reference/articles/daisy.htm