Do you have any idea about the energy levels needed to get ultrasound through even a few meters of air, not to mention concrete, and glass probably doesn't help

Do you have any idea about the energy levels needed to get ultrasound through even a few meters of air, not to mention concrete, and glass probably doesn't help either. Not to mention for highly localized beamwave-wavefront peaks. I don't really, but 100 feet distance would include somuch noise from heat convection and whatnot that a simple targeted ultrasound canon so tonspeak would be mere fantasy.