# Hertz (Hz)

## What is frequency in hertz (Hz)?

Frequency is the number of times a sound wave repeats itself per second. It is measured in hertz (Hz), where one hertz is equal to one cycle per second. The higher the frequency, the higher the pitch of the sound. For example, a mosquito buzzing has a high frequency sound, while a foghorn has a low frequency sound.

## What is Hz in audiology?

In audiology, Hz is used to measure the frequency of sounds that people can hear. The normal hearing range for humans is 20 Hz to 20,000 Hz. This means that people with normal hearing can hear sounds from as low as 20 vibrations per second (20 Hz) to as high as 20,000 vibrations per second (20,000 Hz).

## What is the normal Hz for hearing?

The normal hearing range for humans is 20 Hz to 20,000 Hz. This means that people with normal hearing can hear sounds from as low as 20 vibrations per second (20 Hz) to as high as 20,000 vibrations per second (20,000 Hz). However, as people age, they may start to lose the ability to hear high-frequency sounds. This is called presbycusis.

## What Hz is considered hearing loss?

Hearing loss is defined as the inability to hear sounds at a normal level. It can be caused by a variety of factors, including age, genetics, noise exposure, and certain medical conditions. Hearing loss can be classified as mild, moderate, severe, or profound.

In audiology, hearing loss is typically measured in decibels (dB). A decibel is a unit of sound pressure level. The lower the decibel level, the quieter the sound. The normal hearing threshold for most adults is 0 dB at 1,000 Hz. This means that a person with normal hearing can hear a 1,000 Hz sound at a level of 0 dB.

Hearing loss is considered to be present when a person’s hearing threshold is 20 dB or more at 1,000 Hz. The amount of hearing loss a person has can be determined by measuring their hearing threshold at a variety of frequencies.

If you are concerned that you may have hearing loss, it is important to see an audiologist for a hearing test. An audiologist can measure your hearing threshold and determine if you have hearing loss. They can also recommend treatment options if you do have hearing loss.