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hugo7-
it is but moreso to prevent the need to record/transmit the audio unless you were talking to the device supposedly for privacy.
so originally it was triggered by a button press, then they added ok google/hey siri to activate the device listening hands free, now it seems removing hey siri they just listen to everything you say 24/7.
going the wrong way privacy wise.
HatBeard
noticed this on a drive last weekend. my theory is they're trying to normalise prefixing things with "OK" so that people feel more comfortable using their virtual assistant. because talking to your phone by saying "ok google" makes me want to cringe so much I feel like I might invert.