What Are The Different Types Of Hearing Tests?

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Man getting an audiological evaluation

There are several methods to assess hearing, each tailored to specific circumstances. The type of test chosen is influenced by factors such as the patient’s age, cognitive abilities, and and even the reliability of a patient’s responses. Although most hearing professionals will be able to determine the best type of hearing test for you, it can be helpful to understand the different types of hearing tests to prepare yourself, understand how you will be evaluated for normal hearing or impaired hearing, and more fully recognize the terminology being used by the hearing health professional administering the test. What are the different types of hearing tests?

Comprehensive Audiometry


A comprehensive audiometry (or comprehensive audiogram) is the type of test delivered by an audiologist within a clinic setting. This test is a short one, coming in at approximately 10-15 minutes, and is delivered within a sound-treated booth. The booth is designed to reduce ambient noise to an acceptable level to meet appropriate standards. Called “comprehensive” for its design to test overall hearing health, a comprehensive audiogram will be completed at the conclusion of the test, with details involving the success or difficulty in hearing common tones, volumes, and pitches.

Pure Tone Testing

Pure tone testing is often included in a comprehensive audiometry, as it allows audiologists to determine the type, severity, and configuration of an individual’s hearing loss. Different hearing tests measure different aspects of healthy (or unhealthy) hearing, and this one is an important step in determining the scope of an individual’s hearing loss, and can indicate whether the issue is likely to be in the inner, middle or outer ear, based on severity level, and can help determine if loss is mild or severe hearing loss is present.

Pure tones are the “beeps” or soft, clear noises used to evaluate hearing. These tones are used because they go through both the outer and middle ear, which is an important feature when measuring the inner ear’s response, as well as the other portions of the ear’s ability to successfully take in and transmit sound. Pure tone audiometry uses simple, clear tones to successfully test the efficacy of the auditory system, from the outer ear to the inner ear.

Pure tones’ effects are also measured in terms of intensity and frequency; because the pitch of a sound reacts differently within the ear, different tones share different relationships with intensity and frequency. A low tone, for instance, does not enter the ear with the same intensity and frequency as a high tone. Measuring both in pure tone audiometry helps more accurately gauge the health of the ear and its ability to hear and interpret different levels and types of sound waves.

Pure tone audiogram

Within this type of testing, it is important to determine the threshold of the person in question, or the softest level detected at least 50% of the time. The threshold can then be used as a base level from which to operate and evaluate further. Establishing a threshold in a pure tone test gives hearing professionals the ability to establish the base-level health of a patient’s hearing ability.

In a pure tone test, the pure tones are delivered through inserts or headphones (called air conduction) and bone oscillators (called bone conduction). In the case of a person who is unable or unwilling to wear traditional headphones, the sound may be transmitted through a speaker system. In all types of hearing tests, patient responses are recorded as the basis of the individual’s hearing health is established.

While the range of human hearing spans from 50-50,000 Hz, audiologists and other hearing health professionals typically test within the 250-8,000 Hz range, as it is the range most important for speech sounds. Because speech is one of the most valuable measures of social health, it is often one of the most significant issues reported by patients requesting hearing tests or reporting hearing loss of one kind or another.

Speech Testing

As mentioned above, speech is one of the most valuable measures of social health, so it is crucial to include speech testing as part of a comprehensive exam. There are two types of speech testing: threshold and suprathreshold. The threshold test comes first, as it allows audiologists and other hearing health professionals to determine what level to begin supra-threshold testing, or testing that evaluates at which point listeners are capable of accurately recognizing speech. The Speech Reception Threshold (SRT) is the lowest hearing loss (HL) level at which 50% of two-syllable words are correctly repeated. Hearing thresholds are often cross checked to confirm the reliability of established norms, in order to deliver a confident diagnosis.

During this process, a word recognition score (WRS) is also obtained at a level designed to facilitate the best performance. Patients will be asked to repeat single-syllable words, which are presented at a loud (but comfortable) level. Determining the WRS of a patient during testing helps identify the root of pathology, and can even help determine prognostic information to develop effective treatment and rehabilitation.

Different Testing Methods

When a patient is not able to reliably or comfortably participate in voluntary testing, there are modified test techniques that can still effectively measure the health of the outer, middle, and inner ear. These are typically applied to pediatric patients, but there are certainly instances in which an adult patient is not able or willing to respond reliably and the following tests are administered:

  • Behavioral Observation Audiometry. This hearing test is used for infants who cannot respond to tones or speech stimuli. Behavior changes, such as the startle response are observed and recorded in response to different sounds. This test is typically given from newborn age to 7 months.
  • Visual Reinforcement Audiometry. This test is used for infants and toddlers who can be conditioned to answer reliably. In this test, children are encouraged to respond to a stimulus by pairing that stimulus with an interesting sight like a moving toy or video clip. It is typically used from 7 months to 2.5 years.
  • Conditioned Play Audiometry. This test is used for young children, over the age of two (typically 2-5 years), who can be conditioned to respond to stimulus in a more complicated effort than the previous test. Stimulus pairing often utilizes more active engagement, such as rolling a ball down a ramp or completing a puzzle.
  • Voluntary Behavioral Audiometry. Finally, this test is typically used for older children and adults who are able to respond through raising a hand, answering verbally, or pressing a button when they hear sounds.

Before the ear canal and inner ear can be evaluated, a healthcare professional will identify the best possible type of testing to yield effective results. As such, your battery of tests may differ from those of other people with hearing loss.

Tuning Fork Tests

Man getting a tuning fork test as part of an audiological exam

Tuning fork tests are not as technologically advanced as some of the other methods of testing, but are useful, nonetheless. They are quick and easy, and can be used to estimate the type of hearing loss an individual is experiencing. By striking a tuning fork and placing it on the patient’s head in certain spots, then asking them questions about what they hear, healthcare professionals can arrive at several conclusions regarding the patient’s degree and type of hearing loss. Although it is useful, there are those who question its reliability; it is not typically used as a standard test, but is instead used when no other information or technology is available. It is not typically used as a diagnostic tool in isolation.


Immittance testing measures the status and the function of the middle ear system–in particular, the tympanic membrane and acoustic reflex. Because the vibration of this membrane and contraction system is integral to healthy ear function, an immittance test can help determine if the middle ear is functioning as it is supposed to. Unlike age related hearing loss, loss involving damage to the tympanic membrane may be more likely to be related to injury, infection, or trauma. Immittance testing provides information that can help guide medical treatment, and help either confirm or disprove additional test results.


Tympanometry, a form of immittance testing, measures the mobility of the eardrum, gauging the air pressure changes that occur within the ear canal. While it does not directly measure hearing ability, it does help lend insight into a variety of other tests; after all, the tympanic membrane is a vital player in hearing ability. When it is not functioning properly, consistent and appropriate hearing cannot take place.

Acoustic Reflex Testing

The acoustic reflex is a reflex within the human auditory system that occurs when exposure to loud sounds takes place. When a loud noise is heard, the muscles found in the middle ear contract. In this form of immittance testing, this response is measured and results are used to provide information about the integrity of the auditory pathways ascending through the brainstem. When the muscles do not contract, or do not contract fully, hearing health is impaired, and a patient’s hearing health and path forward can more effectively be determined.

Objective Testing

Objective testing is a form of testing that is more frequently used in infants, and those without the ability to effectively communicate. Behavioral testing is the standard in modern hearing test batteries, but there are cases in which these types of hearing tests are not viable. Objective measurements that do not require cooperation can be delivered in order to better deliver hearing tests to infants and those with communication barriers. Even without communication, these measurements can provide a surprising amount of information regarding the health and efficacy of the hearing system, which allows healthcare providers to confidently diagnose and treat hearing loss.

Otoacoustic Emissions

Otoacoustic emissions are responses measured from the sensory organs found within the inner ear, or the hair cells required for healthy hearing. Normal outer hair cell function is essential to be able to reliably hear soft sounds. When hair cells are damaged, reduced or absent responses are measured on an otoacoustic emissions hearing test, and healthcare professionals can more effectively develop a treatment plan.

Auditory Brainstem Response

The auditory brainstem response test determines how well the brain is taking in and interpreting sound. When sound waves enter the ear, there is a series of electrical impulses that can be measured within the brain to provide information about the signals being transmitted through auditory pathways. Within the first 10 milliseconds after stimulating the hearing system, information is gathered that provides invaluable information regarding the auditory pathway’s integrity. It is even able to provide threshold information with enough specificity to fit hearing aids on infants.

Auditory Steady State Response

A final objective measurement test, the auditory steady state response evaluates whether or not the auditory system is responding to incoming stimuli. Responses are measured and interpreted via an algorithm on a computer, to determine whether responses are present or absent. This can help healthcare providers develop an estimated audiogram to successfully create treatment plans.

The Role Of Testing In Treatment

While it may seem simple enough to say that hearing difficulty necessitates a hearing aid, there are many different ways to address hearing loss and the common disorders and conditions that accompany those losses. Some treatment, for instance, is developed in conjunction with tinnitus treatment, while other treatment plans focus entirely on hearing loss. Selecting the right battery of tests and correctly interpreting their results is the role of audiologists and other hearing health professionals, and will determine the correct route of testing used to successfully treat or manage hearing loss.

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