This whole Canadian truckers honking at people episode reminds me of that one time I was building a sound cannon. Unfortunately, I never finished the project.
I haven’t posted any updates in a while, but I’m still working on my ultrasonic cannon to deter my neighbor’s dog from barking.
I currently have only two speakers on this system, but the amp is hardly being used, and so I’ll keep adding more. Perhaps 4-8 speakers per unit. If this one unit works, I’ll build several and mount them along my wall pointed at the neighbor’s property.
The loud buzzing sound that you can hear is not audible in real life. The phone’s microphone, as well as a dog, can pick it up, but the human ear can not. The unit is sound activated by the dog barking, but can be manually triggered as well.
I can also turn the unit into “sonic” mode and use it against my human neighbors, so that every time their dog barks it assaults their home with an extremely loud high pitched noise, but that would be cruel.