Loveable Robots

I.B.M. has patented a computerized voice that is said to be almost indistinguishable from human ones. This voice is programmed to include "ums," "ers" and sighs, to cough for attention, even to "shhh" when interrupted. According to Andy Aaron, of I.B.M.'s Thomas J. Watson research group speech team: "These sounds can be incredibly subtle, even unnoticeable, but have a profound psychological effect. It can be extremely reassuring to have a more attentive-sounding voice."
-Roy Blount Jr.