AFAICT the mics are TDM mics in a stereo config (shared data line, idling at average of ~1/2 Vcc, don't have scope with me to check). That's connected to a single AND gate (SN74LV1T00 or equiv), the other input comes from the mute switch.
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When the mute is engaged, the output of the gate drops to 0V, and that is what goes to the SoC (after a divider, the SoC is probably 1.8V logic while the mics/AND are at 3.3V).
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I traced the path from the hardware switch, through a filter/debounce network, to the AND gate, and from the mics to the AND gate. So unless there are backdoor buried traces that bypass this (which would be hard evidence of a backdoor, since they would make *no sense*), it's safe
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(correction, I meant PDM mics, not TDM; TDM is a different style, though PDM mics do time-division-multiplex the stereo channels, which is how I mixed it up)
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They can link to the tweet. A tweet from a random individual is weak evidence, but it trumps no evidence.
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Seems that... shall we say, incompletely-educated people... think that the "the mic's off" message and the orange lights indicate it's a software switch, since it's obvious that there's a difference in software behavior. The idea that SW responds to HW state seems to elude them.
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I do that thing in the movies where you turn on the faucets in the kitchen or bathroom but somehow Google's multidirectional mics can still isolate my voice. Only positioning it directly under the running water seems to stop it from hearing me. Don't credit me when sharing this
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Is this the Mini v1 or the newly announced one? I wonder if anything changed...
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