This is real! We started our startup based on this principle. Do note that these emissions do not occur often, think about up to 10-100 per hours in stress states.
For a small background read, read this (not our research): https://www.cell.com/cell/fulltext/S0092-8674(23)00262-3
If you are interested I recommend using a MEMS microphone, sampling at 384 or 500 kHz and triggering at frequencies between 20-200 kHz.
> Do note that these emissions do not occur often, think about up to 10-100 per hours in stress states.
I think I must be misreading. If one wants to detect these signals being emitted by plants, why is 10–100 per hour not often? I'd think that having to wait 6 minutes, or, to play it safe, even an hour would still be way more informative than finding out about the stress only when its effects were visible to the eye.
This is real! We started our startup based on this principle. Do note that these emissions do not occur often, think about up to 10-100 per hours in stress states. For a small background read, read this (not our research): https://www.cell.com/cell/fulltext/S0092-8674(23)00262-3
If you are interested I recommend using a MEMS microphone, sampling at 384 or 500 kHz and triggering at frequencies between 20-200 kHz.
There is several people who have made these solutions for detecting bats using pico's: https://www.geeky-gadgets.com/raspberry-pi-bat-detector-17-0...
If you want something off the shelf look into something like this: https://batsound.com/