What is hearing range?
The hearing range refers to different frequencies that humans or animals can hear. The frequency that can be heard differs throughout our lives and the test known as an audiogram is used to measure the sounds that one can hear. There is a significant difference between the range of hearing of people and mammals, which explains why people cannot hear the sounds that some animals have caused.
The hearing range is between 20 and 20,000 Hertz (Hz). Before people reach their adolescent years, this upper range is significantly lower, with most oral communication between 200 and 8,000 Hz. The frequency of 1,000-3 500 Hz is the most sensitive to the human ear. Ultrasound refers to sounds above the hearing range, while the sound below the range is known as an infrastructure.
The audiometer is used to test people hearing. This equipment allows the subject to listen to different frequencies on special headphones. The minimum test results are used to compare. This curve represents a regular hearing range. This test behindIt pills a number of tones at a certain pitch and intensity. The object raises the hand as a hint of hearing the sound. The tester then records the lowest sound sound that the object can hear.
dogs have a larger hearing range than humans. They can hear sounds between 40 and 60 000 Hz. Depending on the breed, the ears of dogs have at least 18 muscles that allow them to tilt and rotate their ears to strengthen the sound. Sounds that seem loudly to human frightening dogs who respond well to ultrasonic signals in the pipe training. Home breeds are ideal guard dogs, because their hearing range allows them to clearly hear the intruders.
hearing range between 1,000 and 90,000 Hz. Although they cannot hear the same low frequencies as humans, they can communicate through the sounds of inaudible people. This is also useful in the attack. Mice are able to send warning sounds to other rodents without hearing the predator.
dolphinsBottlenose has a hearing range between 250 and 150,000 Hz. Dolphins, however, communicate differently with other marine mammals such as whales. While whales use low frequency signals and moans, dolphins use clicks and whistles.