Apple has published a fascinating new entry in its Machine Learning Journal this month that explains how the voice-activated ‘Hey Siri’ detector works in detail. While many of these entries tend to be too in depth for the average reader (i.e. me), October’s entry from the Siri team includes several interesting (and understandable!) tidbits about what happens behind-the-scenes when you use ‘Hey Siri’ on your iPhone and Apple Watch.
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