4 ms·
I've worked in a few places that use vibrating windows to defeat parabolic directional microphones; they've been an imoportant counter espionage measure for at
by ra 2y ago
I've worked in a few places that use vibrating windows to defeat parabolic directional microphones; they've been an imoportant counter espionage measure for at least 25 years - probably a lot longer!
- ggm 2y agoI'm assuming this cannot be either a stable signal or a well known source like a local Radio station because then you could "subtract" the noise and .. well get the in-room sounds just like you used to. Or it has sufficient energy to make any transmission effects through vibration useless because broad-spectrum the glass is shaking to shakira too much anyway.