Sounds pretty wild, but definitely doable. Think about layering a few frequency bands—maybe low‑bass for bulk moisture changes, mid‑range for plant stress markers, and high‑frequency for tiny changes in leaf surface. A small array of microphones and speakers can map the acoustic field, giving you spatial resolution without any extra wiring. The trick is to calibrate each plant’s “voice” and keep the system quiet enough so it doesn’t stress the crops. With the right DSP tweaks you could even trigger vents or irrigation based on the sound‑signature alone. Just make sure the feedback loop is tight, or you’ll end up with a greenhouse that’s as chaotic as a jam session.