Comment by pbhjpbhj 5 days ago If it's sensitive enough to read a heart beat, then surely it can be used as a covert microphone? 8 comments pbhjpbhj Reply gavinsyancey 5 days ago The laptop also contains a normal microphone. You can't access this without root; if you have that you have permissions to access the real microphone. 1e1a 3 days ago I can access the IMU without root on my M4 mac running Sequoia nottorp 5 days ago ... but think how much "engagement" a "security expert" would get out of this! Quppi 5 days ago From testing, it seems to require me to press my wrists quite hard against the macbook to get a somewhat accurate reading on the heartbeat. Non the less a cool project and I wasn't even aware my macbook has an accelerometer. 1e1a 3 days ago The sample rate is only ~800hz (probably very difficult/impossible to increase) pbhjpbhj 20 hours ago The fundamental frequencies of voice are below half that, I think that means you can use it to determine what is said writing it's sensitivity range. rcxdude 5 days ago Depends on the bandwidth. rcxdude 5 days ago depends on the bandwidth
gavinsyancey 5 days ago The laptop also contains a normal microphone. You can't access this without root; if you have that you have permissions to access the real microphone. 1e1a 3 days ago I can access the IMU without root on my M4 mac running Sequoia nottorp 5 days ago ... but think how much "engagement" a "security expert" would get out of this!
Quppi 5 days ago From testing, it seems to require me to press my wrists quite hard against the macbook to get a somewhat accurate reading on the heartbeat. Non the less a cool project and I wasn't even aware my macbook has an accelerometer.
1e1a 3 days ago The sample rate is only ~800hz (probably very difficult/impossible to increase) pbhjpbhj 20 hours ago The fundamental frequencies of voice are below half that, I think that means you can use it to determine what is said writing it's sensitivity range.
pbhjpbhj 20 hours ago The fundamental frequencies of voice are below half that, I think that means you can use it to determine what is said writing it's sensitivity range.
The laptop also contains a normal microphone. You can't access this without root; if you have that you have permissions to access the real microphone.
I can access the IMU without root on my M4 mac running Sequoia
... but think how much "engagement" a "security expert" would get out of this!
From testing, it seems to require me to press my wrists quite hard against the macbook to get a somewhat accurate reading on the heartbeat. Non the less a cool project and I wasn't even aware my macbook has an accelerometer.
The sample rate is only ~800hz (probably very difficult/impossible to increase)
The fundamental frequencies of voice are below half that, I think that means you can use it to determine what is said writing it's sensitivity range.
Depends on the bandwidth.
depends on the bandwidth