4 ms·

Would this also be true for electrostatic speakers as well? Though would probably would require greater gain/amplification or, potentially the application of so

• ssl-3 2y ago
  With bias power, I think an electrostatic loudspeaker turns into a condenser microphone (a thing that provides varying capacitance in response to changes in pressure). I don't think that electrostatic loudspeakers all require bias power, so it's not quite as simple as using a dynamic loudspeaker backwards is. It is a neat idea, though. A big, flat-panel microphone would be interesting to play with.
  • robotresearcher 2y ago
    You can use a window or any large panel as a microphone without even touching it by observing its vibrations. You can bounce a laser off it, or even go fully passive using a camera with some sensitivity tricks: I recall a paper that reconstructed a remote conversation by watching a houseplant through a window.
    • ssl-3 2y ago
      Of course. Everything is a microphone if you're brave enough.