We really need better open source {OCR, TTS, dictation, ...}. All of the common FOSS tools for these tasks are so horribly behind the state of the art.
The sad thing is most of the state of the art models and algorithms are open research, they just are usually not written by software engineers and need to be rewritten to be deployable. Usually you just get some shell script like "run_eval.sh" that generates the figures in the paper through a bunch of spaghetti code, and most of the time it will depend on a specific old version of Tensorflow, that probably isn't available for your CUDA version, and probably won't compile on your system without hours of Googling.