It's noise from the whistle itself that drives dogs crazy, not it's pitch. The reason this isn't basically a dog whistle is because a normal whistle produces a

It's noise from the whistle itself that drives dogs crazy, not it's pitch. The reason this isn't basically a dog whistle is because a normal whistle produces a bunch of random annoying noise. If you continually blow a normal whistle, most things that can hear it will be annoyed. So, a dog whistle is simply a normal annoying whistle that humans can't hear. This, on the other hand, isn't a bunch of random annoying noise. If humans could hear it, it would just sound like someone speaking. There's no reason to believe that dogs would be especially annoyed.