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Hey Siri: Voice Triggered Assistant

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Hey Siri: Voice Triggered Assistant  Empty Hey Siri: Voice Triggered Assistant

Post by bdahm Thu Oct 26, 2017 8:01 pm

First of all, I'm not a big Siri fan. It works well for doing things like telling it to launch an app, playing songs, and to call someone on your Contacts list. Asking for information is a whole other matter. Secondly, on my iPhone 6 the only time I can summon Siri without holding down the Home button is when it is plugged into power. Apparently in newer model iPhones, you no longer need to be under power. The technology by which it listens for the two trigger words is quite interesting. 


The “Hey Siri” feature allows users to invoke Siri hands-free. A very small speech recognizer runs all the time and listens for just those two words. When it detects “Hey Siri”, the rest of Siri parses the following speech as a command or query. The “Hey Siri” detector uses a Deep Neural Network (DNN) to convert the acoustic pattern of your voice at each instant into a probability distribution over speech sounds. It then uses a temporal integration process to compute a confidence score that the phrase you uttered was “Hey Siri”. If the score is high enough, Siri wakes up. This article takes a look at the underlying technology. It is aimed primarily at readers who know something of machine learning but less about speech recognition.





https://machinelearning.apple.com/2017/10/01/hey-siri.html


-Bill 

bdahm
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