Walking out of a hearing evaluation with a printout full of symbols, lines, and decibel numbers can feel more confusing than helpful. Most patients leave their appointment with a general idea of whether their hearing is “fine” or “not great” but very little understanding of what those results actually mean for their daily life.
This guide, written with input from our team at ENT, Sinus & Hearing Care Center in Paramus, NJ, breaks down everything on your audiogram in plain language — including what normal hearing test results look like by age and what to do if your results fall outside that range.
What Is an Audiogram?
According to the American Speech-Language-Hearing Association, an audiogram is a graph that maps your hearing ability across a range of pitches and volumes. It is produced during a pure-tone audiometry test, which is the standard component of any comprehensive hearing evaluation.
The graph has two axes:
- Horizontal axis (x-axis): Frequency, measured in Hertz (Hz). This runs from low-pitched sounds on the left (250 Hz) to high-pitched sounds on the right (8,000 Hz). Everyday speech sits mostly between 500 Hz and 4,000 Hz.
- Vertical axis (y-axis): Loudness, measured in decibels (dB). The scale runs from very soft sounds at the top (0 dB) to very loud sounds at the bottom (120 dB).
The softest sound you can detect at each frequency is called your hearing threshold. These thresholds are plotted as symbols on the graph — typically an O for the right ear and an X for the left ear.
The closer those symbols sit to the top of the graph, the better your hearing is at that frequency.
How to Read Your Hearing Test Results Chart
The hearing test results chart — your audiogram — is read from left to right, low pitch to high pitch. Each plotted point represents the quietest sound you were able to hear during testing.
A few key things to look for:
The shaded region at the top represents the normal hearing zone (0–25 dB). If your O’s and X’s fall within this band across all frequencies, your hearing is considered within normal limits.
Symbols that dip below 25 dB indicate a degree of hearing loss at that frequency. The further the symbols drop, the greater the loss.
Sloping patterns matter. A flat line across frequencies suggests uniform hearing loss. A slope that drops sharply toward the right (high frequencies) is one of the most common patterns seen in adults — often related to noise exposure or age-related hearing changes.
Bone conduction markers (represented by brackets or arrows) are also plotted on some audiograms. These help the audiologist determine whether hearing loss originates in the outer/middle ear or in the inner ear (cochlea) and auditory nerve.
Hearing Loss Categories: What the Decibel Levels Mean
If your thresholds fall outside the normal range, hearing loss is classified by severity:
- Normal hearing: 0 to 25 dB
- Mild hearing loss: 26 to 40 dB — you may struggle with soft speech or conversations in noisy environments
- Moderate hearing loss: 41 to 55 dB — conversational speech at a normal distance becomes difficult
- Moderately severe: 56 to 70 dB — louder speech is needed to follow conversation
- Severe hearing loss: 71 to 90 dB — only very loud sounds are audible without amplification
- Profound hearing loss: 91 dB and above — little to no usable hearing without significant intervention
These categories guide treatment decisions. Mild loss may be managed with monitoring and hearing protection strategies, while moderate to severe loss often benefits from hearing aids or, in certain cases, cochlear implantation.
Normal Hearing Test Results by Age: What to Expect
One question we hear frequently at our Paramus clinic is: “Is this result normal for my age?” The honest answer is that normal hearing thresholds don’t change dramatically through early adulthood, but age-related hearing loss — called presbycusis — becomes increasingly common after age 50.
Here is a general picture of what tends to be typical by age group:
Children and young adults (under 40): Hearing thresholds should comfortably fall within the 0–20 dB range across all frequencies. Any consistent dip below 25 dB warrants further evaluation.
Adults 40–60: Mild high-frequency loss (around 4,000–8,000 Hz) begins to appear in many otherwise healthy adults and may not yet affect communication. However, it is worth monitoring annually and addressing noise exposure habits.
Adults 60 and older: High-frequency hearing loss becomes more pronounced. Many adults in this age group notice difficulty following conversations in restaurants, on the phone, or when background noise is present. Annual hearing evaluations are strongly recommended.
Children: Pediatric hearing evaluations are assessed differently — normal thresholds for children should fall at 15 dB or better across all tested frequencies. Any result consistently at 20–25 dB or below may affect speech and language development and should be evaluated promptly by a specialist.
Because age-related changes are gradual, baseline testing in your 40s gives your audiologist a reference point to track changes over time rather than trying to interpret a single result in isolation.
Why You Can Hear But Not Understand Speech
One of the most frustrating patterns on an audiogram is high-frequency hearing loss with relatively preserved low-frequency hearing. Patients with this pattern often say: “I can hear that people are talking, I just can’t make out what they’re saying.”
This happens because speech intelligibility depends heavily on consonant sounds — the s, f, th, sh, and ch sounds — which are carried in the higher frequency range (2,000–8,000 Hz). Vowel sounds, which give speech its volume and energy, sit in lower frequencies and are easier to hear.
When high-frequency thresholds drop, a person loses the ability to distinguish between similar-sounding words. Words like “cat” and “cap,” or “thin” and “shin,” become indistinguishable. This is particularly noticeable in noisy spaces where the brain is already working harder to separate competing sounds.
Other Components of a Hearing Evaluation
A full hearing assessment typically includes more than pure-tone testing alone.
Tympanometry measures the movement of the eardrum in response to air pressure changes. It helps identify conditions such as fluid behind the eardrum, eustachian tube dysfunction, or a perforated eardrum. Results are reported as Type A (normal), Type B (fluid present), or Type C (negative middle ear pressure).
Speech audiometry tests how well you understand spoken words at a comfortable volume. The score, called your Speech Recognition Score or Word Recognition Score, reflects the percentage of words you can correctly identify. A low score despite manageable pure-tone thresholds may suggest a processing issue beyond simple volume loss.
Otoacoustic emissions (OAEs) test the function of the outer hair cells in the cochlea and are especially useful in pediatric evaluations.
How Often Should You Have Your Hearing Tested?
Recommended testing frequency depends on age, risk factors, and whether you have already been diagnosed with hearing loss:
- Ages 18–40 with no symptoms: Every 3 to 5 years
- Ages 41–60: Every 2 to 3 years, or annually if you work in a noisy environment
- Ages 60 and older: Every year
- Children: Screened at birth and at key developmental checkpoints; annually if there is a history of ear infections or speech delay
- Anyone with sudden changes in hearing: Immediately — sudden sensorineural hearing loss is a medical urgency
Do not wait for your scheduled interval if you notice a change. Sudden hearing loss, new onset tinnitus (ringing in the ears), or a feeling of fullness in one ear should be evaluated promptly.
What Happens After Your Hearing Evaluation
At ENT, Sinus & Hearing Care Center, your results are reviewed not just by an audiologist but in the context of your full ear, nose, and throat health. Dr. Brianna Alnor, Au.D. conducts comprehensive audiological evaluations and works directly with Dr. Daniel Samadi, MD to determine whether hearing loss has an underlying medical cause that needs to be addressed before or alongside audiological intervention.
Some causes of hearing loss — such as earwax impaction, ear infections, fluid in the middle ear, or otosclerosis — are medically treatable. Others, such as sensorineural loss from noise damage or aging, are managed with hearing rehabilitation, including hearing aids or cochlear implants when appropriate.
If your results show hearing loss, early action matters. Research consistently links untreated hearing loss to increased cognitive load, social withdrawal, and a higher risk of cognitive decline over time. Getting a clear picture of where your hearing stands is the first step toward protecting not just your hearing, but your overall quality of life.
Schedule a Hearing Evaluation in Paramus, NJ
If you have questions about your audiogram, want a baseline hearing evaluation, or have noticed changes in your hearing, our team is here to help. Schedule an appointment with Dr. Samadi and Dr. Alnor at our Paramus, NJ clinic — same-day and next-day appointments are available.
📞 Call us at (201) 996-1505
