Introduction: People who are blind and dog whistles

People who are blind have heightened senses to compensate for their lack of sight. One of the senses that they rely on is hearing, which is why there is a popular belief that they can hear dog whistles. Dog whistles are commonly used by dog trainers to communicate with their pets, but they are also known for their high frequency that is said to be inaudible to humans.

What are dog whistles?

Dog whistles are a type of whistle that emits a high-pitched sound that is beyond the range of human hearing. They are commonly used by dog trainers to train and communicate with their dogs because dogs have a much wider hearing range than humans. Dog whistles are also used to keep dogs away from certain areas or to stop them from barking.

How do dog whistles work?

Dog whistles are designed to emit a sound that is beyond the range of human hearing but within the range of a dog’s hearing. The sound is created by a narrow tube with a ball inside that vibrates when air is blown through it. The frequency of the sound depends on the size of the whistle and the distance between the ball and the opening of the whistle. The higher the frequency, the smaller the whistle and the closer the ball is to the opening.