"The robotic sounding voice (according to the Reddit comments) is commentators (via text to speech) on the live stream telling him useful things like to call the fire brigade, use a fire extinguisher, or even just to look behind where the fire is [spreading]."
http://www.gizmodo.com.au/2015/10/live-streamer-sets-room-on...
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[ 3.4 ms ] story [ 14.1 ms ] thread"Kotaku reports the man was injured along with his father, mother and another relative who was in the house at the time." http://www.huffingtonpost.com/entry/minecraft-fire-livestrea...