What is audiometry?

Audiometry is performed to test the sound range of a person for tones or speech. The health screening method, which is relatively painless, is often performed by audiometry when the person may have hearing loss. Typically trained technician - known as an audiologist - oversees the process of subjective testing using an electrical device called an audiometer.

Testing requires a person to wear headphones when sitting in a soundproof stand. The audiologist sitting in front of the stall will control the audiometric equipment and test each ear separately. During the procedure called tone audiometry, the patient will be asked to press the button when he hears tones at various frequencies and playgrounds at different decibel levels. On the ears, the headband transmits headbands, transmits tone vibrations of the bone to the inner ear. The audiologist controls the frequency and volume of Tones. Then the patient is asked to confirm when the sounds are heard through the headband. Audiometry tone often takes less than 30 minutes.

speechAudiometry examines how well one perceives the sounds of words. The person sits in a soundproof stand wearing headphones. The audiologist will present a list of words or phrases at different levels of decibel. The technician then determines the threshold of speech intake by asking the patient to repeat words or phrases aloud. The test usually takes 10 minutes to serve.

Hearing test results are often documented on a graph known as an audiogram and are measured in decibels. The audiogram generally records the results separately for both right and left ear. The graph usually records low frequency at one end and heard high tones at the other end. The scheme also maps the volume of tones of the heard loud -tones at the top and softer tones near the bottom of the audiogram.

A person who has normal hearing will usually be able to distinguish and answer every tone frequency that is played in both ears during the procedure. Tones are generally audible between hearing level zero and 20 decibels (DB HL). A patient who undergoes a hearing test is usually considered to be a normal hearing if it can distinguish tones in this range.

The results of the

speech audiometry are generally measured as a percentage score. The result also includes the lowest and highest volumes understood by the patient. A person with normal hearing will usually be able to respond correctly or identify to more than 90 percent of words and phrases and will usually be able to understand the average speech that is spoken between 20 and 50 dB hl.

The patient is generally considered an irregular outcome if there is a serious mismatch between the results of the sound of different left and right ear. If a person is unable to understand the sound of 20 dB HL or higher, it is generally considered to be a certain loss of hearing. Any mismatch or unusual result may require further testing or suggesting that hearing aid or remedial operation may be needed.