Provided that Amazon’s newest Tremendous Bowl advert mentions Alexa at least 10 occasions, that begs a query: will you must unplug your Echo speaker to keep away from Burger King ranges of chaos because it responds to each single utterance? Fortunately, the reply is “no.” Amazon has confirmed that it will use acoustic fingerprinting strategies to forestall Alexa-equipped units from going right into a tizzy throughout the 90-second industrial. Your devices will know they’re listening to the advert, not somebody in your lounge, and can ignore the requests.
The corporate would not go into to an excessive amount of element about what the fingerprinting includes, nevertheless it stems from a command filtering patent. For the Tremendous Bowl advert and different promos the place Amazon already is aware of what’s coming, Amazon will ship fingerprints prematurely so Alexa can evaluate enter and ignore requests from advertisements. In conditions the place Amazon cannot predict what is going to occur (resembling a TV phase), it makes use of dynamic fingerprinting that appears for a lot of simultaneous activations primarily based on the identical audio. This would possibly not catch each false request, nevertheless it sometimes stops “80 to 90 %” of units from responding. Let’s put it this manner — a humorous incident should not devolve into nationwide chaos.
Amazon has one other approach the place it might ship an inaudible sign within the 3kHz to 6kHz vary to cease Alexa from responding, though that does not look like in use right here.
Sadly, the patent means that different corporations must discover different methods to display for unintended enter. And that is unlucky — simply ask anybody who’s had a cellphone go off when a present says “OK Google” or “hey Siri.” Nevertheless, it is good to know that corporations are simply as irritated by false responses as you’re.