How do phones constantly listen for voice commands like ‘Hey Siri’ or ‘Ok Google’ without draining the battery quickly?
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So…not sure what you’re thinking draws a lot of power, here, but…as others have said, the thing only connects to internet when it has to, which is when it finally hears the right command. The “hearing” happens on the device, as does the first interpretation of what was heard. Meaning it hears you and figures out IF you said the command word before doing anything else. No command word, no increased power draw.
But…even MORE important than all of that is the fact that microphones don’t consume power: they produce it. It’s a tiny, tiny amount, but it’s enough to “power” the detection AND some of the first line interpretation, mostly because the detection doesn’t require amplification before going to the interpreter.
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