Want to train dogs? Want the dog stop barking? Use our Dog Whistle application to train your dogs. It use different sonic sounds of high frequency (10 KHz - 20 KHz)
Dogs can hear sound at higher frequencies than humans can. A dog whistle exploits this by emitting a high frequency sound to call to a dog. Many dog whistles emit sound in the upper audible range of humans, but some, such as the silent whistle, emit ultrasound at a frequency in the range 18–22 kHz.
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A dog whistle (also known as silent whistle or Galton's whistle) is a type of whistle used in the training of dogs and cats. It was invented by Francis Galton; the whistle was mentioned in his book Inquiries into Human Faculty and its Development. In his discussion of his experiments to test the range of frequencies that could be heard by various animals, he notes that cats have the most all-round sensitive hearing, being able from a considerable distance to hear notes too high in frequency for humans to hear, and small dogs can also hear these notes, while large dogs cannot.
The frequency range of a dog whistle is largely out of the range of human hearing. Human hearing is typically considered to be between 20 Hz and 20 kHz. A dog whistle is within the range of 23 to 54 kHz. Some dog whistles have adjustable sliders for active control of the frequency produced. Depending on the way the whistle is used, a trainer may simply gather a dog's attention or inflict pain for the purpose of behavior modification.
The name dog whistle is often used for both lung-powered whistles as well as electronic devices that emit ultrasonic sound via piezoelectric emitters. The electronic variety are sometimes coupled with bark detection circuits in an effort to curb barking behavior.
Sounds to annoy dogs.
Other whistles - cat whistle, bird whistle, bird call, mosquito repellent.
These kind of whistles are also used to determine the hearing range of people or for physics demonstrations.