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by canada_dry 2060 days ago
The custom home automation system I built relies on google's (very good) off-line voice recognition + automagic [i] + opencv face detection.

I did not want the home asst listening all the time - as it's highly likely to falsely trigger just listening to radio or tv it... so instead I use python+opencv to detect if the assistant (an old rooted samsung note) is being directly looked at - then it wakes up to listen for the trigger word and the command. Of course, I can also manually trigger it via any device in the house.

[i] http://automagic4android.com/