Of course, I'm reminded of Brendan Gregg shouting at hard drives:

https://www.youtube.com/watch?v=tDacjrSCeq4

Hard disk drives are not dissimilar from other high-precision acoustic systems. The actuator is even called a "voice coil."

That we are able to transmit a range of frequencies with sufficient accuracy and precision to induce a magnet to move a near-microscopic coil of wire at the end of armature flying microns above the surface of a platter spinning at a rotational velocity of thousands of RPMs and a linear velocity of inches per millisecond, land at exact locations, and detect the polarity of a magnetic field… I can't even. I don't even know what to compare it to.