An audiology test is a series of measurements that evaluate how well you hear across different pitches and volumes, how well your middle ear functions, and how clearly you understand speech. A comprehensive evaluation typically lasts between 45 minutes and 2 hours and takes place in a sound-treated booth designed to block outside noise. The results tell you whether you have hearing loss, what type it is, and how severe it is.
Pure Tone Testing: The Core of the Evaluation
The part most people picture when they think of a hearing test is pure tone audiometry. You wear headphones and listen for beeps at different pitches and volumes, pressing a button or raising your hand each time you hear one. The audiologist gradually lowers the volume until you can barely detect the sound. That lowest point is your hearing threshold for each pitch.
There are actually two versions of this test, and each reveals something different. In air conduction testing, sound travels through headphones into your ear canal, vibrates your eardrum and the tiny bones behind it, and reaches the inner ear. This tests the entire hearing pathway from outer ear to brain. In bone conduction testing, a small vibrating device is placed on the bone behind your ear, sending sound directly to the inner ear and bypassing the eardrum and middle ear bones entirely.
Comparing the two results is how your audiologist pinpoints the type of hearing loss. If both air and bone conduction scores are reduced equally, the problem is in the inner ear or the nerve pathway to the brain, which is called sensorineural hearing loss. If bone conduction is normal but air conduction is reduced, something is blocking or disrupting sound in the outer or middle ear, which is conductive hearing loss. When both pathways show problems but to different degrees, it’s mixed hearing loss.
Speech Testing
Hearing beeps in a quiet room is one thing. Understanding conversation is another. Speech testing measures how well you process actual words, not just tones. It has two main parts.
The first is the speech reception threshold, which finds the softest level at which you can correctly repeat two-syllable words (like “baseball” or “hotdog”) about half the time. This number should fall within 5 to 12 decibels of your pure tone average. When the two don’t match, it can signal that something else is going on or that the test results need a closer look.
The second part is a word recognition score. The audiologist plays a list of single-syllable words at a comfortable volume and you repeat each one. Your score is the percentage you get right. A normal score is 80% or higher. A low word recognition score, even when your pure tone results are only mildly reduced, can suggest that the hearing nerve itself isn’t processing speech well. This distinction matters because it affects how much benefit you’d get from hearing aids or other interventions.
Middle Ear Tests
Tympanometry and acoustic reflex testing evaluate the mechanical parts of your ear, specifically the eardrum and the tiny bones and muscles behind it. Neither test requires you to respond to sounds at all.
For tympanometry, a small probe is placed in your ear canal. It changes the air pressure slightly while playing a low tone, and a sensor measures how your eardrum moves in response. The result is a graph that shows whether your eardrum moves normally, is too stiff, moves too much, or has a perforation. This is especially useful for detecting fluid behind the eardrum, a common finding in ear infections.
Acoustic reflex testing uses the same probe. When you hear a loud sound, a tiny muscle in your middle ear contracts automatically. The test measures how loud a sound needs to be before that reflex kicks in. If you have significant hearing loss, the reflex may not occur at all. Absent or abnormal reflexes at certain levels can help the audiologist distinguish between different causes of hearing loss.
Objective Tests That Don’t Require Your Input
Some tests measure hearing without needing you to press a button or repeat a word. These are especially important for newborns, infants, and anyone who can’t reliably participate in behavioral testing.
Otoacoustic emissions testing checks whether the inner ear is producing the faint sounds that healthy ears generate in response to incoming sound. A small probe plays a click or tone into the ear and a microphone picks up the response. The test is quick and painless, with a median testing time of about 12.5 minutes for both ears in newborns, and it requires no electrodes.
Auditory brainstem response testing is more involved. Small sensors are placed on the scalp and earlobes, and sounds are played through earphones. The sensors pick up the electrical activity traveling from the hearing nerve through the brainstem. This test can estimate hearing thresholds even in a sleeping infant. Used together, these two tests form the backbone of newborn hearing screening programs, achieving a specificity greater than 99% for detecting significant hearing loss.
How Children Are Tested
Standard hearing tests rely on a patient pressing a button, which doesn’t work with babies and toddlers. For children between about 6 months and 2 to 3 years old, audiologists use visual reinforcement audiometry. The child sits on a parent’s lap in a soundproof room while sounds are played through foam-tipped earphones or speakers. Animated toys or video screens are positioned at eye level, 90 degrees to each side of the child’s head.
At first, the audiologist pairs the sound with the visual reward so the child learns to turn toward the sound source. Once the child catches on, the visual reward comes only after the child turns, acting as positive reinforcement. The audiologist then gradually lowers the volume to find the softest sound the child responds to at each pitch. Social reinforcement like clapping or cheering can supplement the visual rewards. If a child won’t tolerate earphones, the audiologist can use speakers in the room instead, though this approach can’t test each ear separately.
For children around 3 to 5 years old, conditioned play audiometry turns the test into a game. The child might drop a block in a bucket or place a peg on a board each time they hear a sound, replacing the button-press used with older kids and adults.
The Testing Environment
Accurate hearing tests require an extremely quiet room. Professional standards (set by ANSI) specify the maximum allowable background noise at each pitch, and purpose-built sound booths are designed to meet those limits. Research consistently shows that a booth is necessary for clinical-quality results. Studies have found that only about 50% of booths in some settings actually meet the full standard across all test frequencies, which is why well-maintained equipment matters.
For screening purposes in remote or community settings, audiologists sometimes use deeply inserted earphones combined with noise-canceling earmuffs to approximate booth-like conditions. This can work for basic screening, but clinical diagnosis still calls for a proper sound-treated environment.
When You Should Get Tested
The American Speech-Language-Hearing Association recommends hearing screenings at least every 10 years through age 50, then every 3 years after that. More frequent testing is warranted if you’re regularly exposed to loud noise, take medications known to affect hearing, or have other risk factors.
Certain symptoms call for a comprehensive evaluation sooner rather than later. Hearing loss that develops suddenly in one ear, especially over 72 hours or less, is considered urgent. Other red flags include unexplained ringing in one ear, a feeling of fullness in the ear, dizziness or vertigo, hearing that drops noticeably on one side, and any hearing change accompanied by pain, drainage, or facial weakness. A sudden drop of 30 decibels or more across at least three consecutive test frequencies is the clinical threshold for sudden sensorineural hearing loss, which warrants immediate attention.
What to Bring and How to Prepare
No physical preparation is needed. You don’t need to fast, stop medications, or avoid noise beforehand. If you have results from previous hearing tests, speech and language evaluations, or developmental assessments, bring those along so the audiologist can track changes over time. Check with your insurance carrier before the appointment to find out whether you need a referral or prescription from your primary care doctor. Plan to arrive about 15 minutes early for check-in, and set aside up to 2 hours for the full visit, though many straightforward evaluations wrap up closer to 45 minutes.