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by arunpn123 3760 days ago
I built something like this at home. CMU Sphinx is a popular open source speech recognition toolkit that you can run locally. But it was kind of clumsy to setup and train. Also, I couldn't get high accuracy.

Other cloud options include Google Voice and wit.ai. Google Voice AFAIK doesn't allow you to train it with custom models. I finally went with wit.ai which turned out to be pretty good.

Blog post with code and schematics describing my setup: http://arunpn.com/projects/voice-activated-light-switch/