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’s constantly listening *specifically for the phrase “Hey Siri.”*
If it’s not that, Siri doesn’t care, and it’s not going to be recording or transmitting or analyzing. As soon as it hears the wake phrase, though, that’s when it comes online and starts processing.
It’s constantly listening *specifically for the phrase “Hey Siri.”*
If it’s not that, Siri doesn’t care, and it’s not going to be recording or transmitting or analyzing. As soon as it hears the wake phrase, though, that’s when it comes online and starts processing.
They have a program specifically listening for those two words specifically, designed to use as little power as possible while listening. It just needs to be able to tell the phone “I HEARD THE WORDS!” when you say it, and keep quiet and use as little power as possible the rest of the time.
Because it is always listening. The data just isn’t recorded or stored in any way, or searched, so they can claim the microphone isn’t listening when, obviously, it has to be for the service to work. Same with Alexa and Google Home
Your phone has a small chip called DSP, wich is always translating your voice into data. It has a “special mode” where it uses almost no battery but can still understand the “Hey Siri” hotword and wake up the phone.
It’s like when your dog is sleeping next to you and you say something. It will listen, but won’t react unless you call your dog’s name.
Because it is always listening. The data just isn’t recorded or stored in any way, or searched, so they can claim the microphone isn’t listening when, obviously, it has to be for the service to work. Same with Alexa and Google Home
Because it is always listening. The data just isn’t recorded or stored in any way, or searched, so they can claim the microphone isn’t listening when, obviously, it has to be for the service to work. Same with Alexa and Google Home
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.
It’s constantly listening *specifically for the phrase “Hey Siri.”*
If it’s not that, Siri doesn’t care, and it’s not going to be recording or transmitting or analyzing. As soon as it hears the wake phrase, though, that’s when it comes online and starts processing.
So the disconnect is when people say listening they actually mean two separate processes, there’s hearing the sounds and then theirs recording and storing what is said. The analogy is like sleeping, when ur fast asleep you are still listening, we know this cus if I call ur name loud enough you will probably wake up. But that doesn’t mean when ur fast alseep u can remember what is being said, cus ur listening without storing the information. Same thing with Siri it’s listening constantly but doesn’t wake up and record what you have said until you say hey siri.
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