Amazon’s Echo seems great, but what does it hear? | John Naughton
A few weeks ago, I bought Amazon's latest gizmo - the Echo. It's a voice-activated, networked device equipped with a seven-piece microphone array, which means that it can pick up one's voice from anywhere in its vicinity with impressive accuracy. It comes in two versions, one a 9.25in-tall cylinder that contains a number of speakers, the other a much smaller cylinder that just has tinny speakers. Since the latter was a third of the price of the former, your cheapskate columnist bought that and hooked it up to his hi-fi system, which means that when he speaks to it the Echo replies in sultry female tones modulated by a high-end analogue amplifier and a pair of very fine speakers. Her name, by the way, is "Alexa".
I bought it because it seemed to me that it might be a significant product and I have a policy of never writing about kit that I haven't paid for myself. Having lived with the Echo for a few weeks I can definitely confirm its significance. It is a big deal, which explains why the company invested so much in it. (It's said that 1,500 people worked on the project for four years, which sounds implausible until you remember that Apple has 800 people working on the iPhone's camera alone). Amazon's boss, Jeff Bezos, may not have bet the ranch on it (he has a pretty big ranch, after all) but the product nevertheless represents a significant investment. And the sales so far suggest that it may well pay off.
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