[wizzerking]

The major problem when using voice to control a machine is tremors in the voice as the work day proceeds, when the person is stressed, and if the person is experiencing health issues. All these situations/reason will change the timber, and in some cases the intonation. Like 'emphasis on the syllable. Now top that off with accents, like a Hispanic person, or regional slang. Deep Learning kits like https://github.com/FreddieAbad/Voice-Recognition-using-Deep-... are making headway but still far from general voice recognition