How does Siri hear me say “Hey Siri” if it’s not constantly listening to my conversation or me speaking?
In: Technology
It is constantly listening. But it is also constantly forgetting everything it’s heard after six seconds.
Only when it hears its name does it decide to pay attention to what it’s hearing and retain and act on that information.
All of the subconscious hearing and forgetting happens locally in the device. When it needs to act (after hearing its name) its conscious brain kicks in – its connection to the siri servers over the Internet – and it starts to actually process what its hearing.
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