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Amazon Gets Alexa To Not Notice That Super Bowl Commercial

Amazon Gets Alexa To Not Notice That Super Bowl Commercial

But we do know when the second of Amazon's Super Bowl commercials will air and that's during the fourth quarter. Then the Echo can compare live commands to the acoustic fingerprint of the snippet to determine whether the commands are authentic.

In an Amazon blog post, the senior manager on the Alexa Machine Learning team, Shiv Vitaladevuni, said that they were trying to "suppress the unintentional waking of a device while not incorrectly rejecting the millions of people engaging with Alexa every day".

Amazon Alexa devices - what makes them different?

This is possible because of acoustic fingerprinting technology that can distinguish between the ad and actual customer utterances ...

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Though Amazon isn't detailing the specific techniques its using to keep your Echo from triggering from its Super Bowl advertising, Bloomberg notes that a Reddit user, Asphyhackr, might have figured out Amazon's secret. Sindhwani explains that an algorithm in the Amazon cloud picks up the matching audio from various devices, and prevents additional devices from responding.

But did the spot, which poked fun at the idea of Alexa losing her "voice", actually include a hint at the future location of Amazon's second headquarters? Further, the executive stated that the technology is not flawless, but 80-90% of the devices would not respond to broadcasts.

He ran Alexa ads through a digital audio editing software and discovered that the ads transmit levels of sound in the 3,000 and 6,000 hertz portion of the audio spectrum which is inaudible for humans. "It's a very positive surprise for us". To test his theory, he recorded someone saying "Alexa" and used a so-called band-stop filter that reduced frequencies just in this high region of the spectrum.

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