* Decoder
** Third-party licensing is extremely costly (usual unit is millions) and lead to an unwanted dependency. Write a decoder from scratch is tough, and requires highly specialized and difficult to find engineers.
The good news are that exists great open source toolkits that we can use and enhance. I am a long time supportert and contributor of CMU Sphinx that have a number of quality models on different languages openly available. Plus pocketsphinx can run very fast and accurate when well tuned for both FSG and LVSCR language models. For LVSCR we can also consider Julius and benchmark it since he has great proved results.
* Automatic retrain
