calmhead··on Ask HN: Are any startups working on text-to-speech?Ivona, https://www.ivona.com/ the Amazon company responsible for Echo's Alexa voice also has an excellent TTS system.
calmhead··on Automatic Keyword Extraction from TextHave you considered using PLSA (Probabilistic latent semantic analysis)? Effectively, this method does very similiar thing as you aim to do - it chooses a set of words that represen a topic of a document.