When I heard about Amazon’s new $199 Echo device for the home, my initial worry was was how noisy my house can be, especially when my dog is barking.

Echo has microphones and speakers and hopes to revolutionize the way digital, voice-controlled assistants help us in many ways.  You activate the small black cylindrical tower device by saying “Alexa.” Then, you can tell Echo to record a shopping list for an errand or you can say, “Play Pachelbel’s Canon,”  or “Tell me the proper spelling for ‘supercilious.’

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