What are some alternatives?
When comparing TextFromToSpeech and CMU Sphinx, you can also consider the following products
Omnipage - OmniPage solutions offer industry-leading optical character recognition (OCR) for fast, easy, accurate document conversion.
IBM Watson Speech to Text - IBM Watson Speech to Text is a tool that can be used anywhere if there is a need to bridge the gap between the spoken word and its written form, it uses machine intelligence to combine information about grammar and language structure.
Dictanote - Switch effortlessly between using the keyboard and your voice to type out notes.
LipSurf - "Siri for Chrome" Completely control the browser without your hands -- say "google...
Speechmatics - As experts in Machine Learning, Speechmatics provides Automatic Speech Recognition available in private or public clouds and securely on-premises.
Windows Speech Recognition - Windows Speech Recognition makes using a keyboard and mouse optional.