Eli5: How does Google ‘listen’ to you? Is there actually a program running in the background on your phone that records your voice and sends it to google?
In: 2057
nothing is being sent to google. imagine like vintage clap-on clap-off lamp. it doesn’t send anything to anybody. it just works if it detects specific sound meaning specific frequency and specific amplitude. now. google, echo and devices are smarter clap lamps. phone or smart home device has microphone always on (you can turn off but dont be that paranoid), output of the microphone is being sent to pretrained neutal network (when youre setting up ok google you’re repeating this word multiple times). this algorithm is not power hungry so can be used on a background to look for specific sound. after it detects pattern, then it wakes up and does thing. nothing is being sent to google while you dont say ok google, you can assure by disconnecting from network and saying “hey google”, it will still recognize, without network, so its indeed run by yout device. its nothing complex, just a clap lamp on steroids.
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