eli5: How does siri hear me say “hey siri” if it isn’t constantly listening to my conversations or me speaking?
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It has 2 ways to listen.
One is a low power mode, this mode “hears” everything you say of course, but it only understands “hey siri”. Once “hey siri” is triggered the second listening mode is activated which uses a lot more cpu and power to use and transmit the data.
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