How to Read Your Audiogram — Understanding Your Hearing Test Results (Complete Guide)
If you’ve recently completed a hearing test and received a chart filled with lines, symbols, and numbers, you may be wondering: “What does my audiogram actually mean?”
An audiogram is a visual representation of your hearing ability. It shows how well you hear different sounds and speech frequencies and helps hearing specialists determine whether hearing loss is present, which ear is affected, and how severe the condition is.
Understanding your hearing test results can help you make informed decisions about treatment, hearing aids, communication strategies, and long-term hearing health.
In this guide, you’ll learn how to read an audiogram step by step in simple language.
What Is an Audiogram?
An audiogram is the result sheet generated after a Pure Tone Audiometry (PTA) hearing test. It displays the softest sounds you can hear at different pitches (frequencies).
Think of it like an eye test chart—but for hearing.
The audiogram helps determine:
- Whether hearing loss exists
- Which ear is affected
- The degree of hearing loss
- The type of hearing loss
- Whether treatment or hearing aids may help
Understanding the Parts of an Audiogram
A hearing test graph has two main axes:
Horizontal Axis (X-Axis) → Frequency (Pitch)
Measured in Hertz (Hz)
This shows how high or low a sound is.
| Frequency | Common Everyday Sounds |
|---|---|
| 250 Hz | Deep male voices |
| 500 Hz | General conversation |
| 1000 Hz | Speech clarity |
| 2000 Hz | Child voices |
| 4000 Hz | Birds, consonants |
| 8000 Hz | Very high-pitched sounds |
Left side = Low pitch sounds
Right side = High pitch sounds
Vertical Axis (Y-Axis) → Hearing Level (Volume)
Measured in Decibels (dB HL)
This shows how loud a sound must become before you hear it.
| Hearing Level | Meaning |
|---|---|
| -10 to 20 dB | Normal hearing |
| 21–40 dB | Mild hearing loss |
| 41–55 dB | Moderate hearing loss |
| 56–70 dB | Moderately severe |
| 71–90 dB | Severe |
| 91+ dB | Profound hearing loss |
Top of graph = Better hearing
Bottom = Greater hearing loss
Audiogram Symbols Explained
During testing, symbols are used to represent hearing thresholds.
| Symbol | Meaning |
|---|---|
| O | Right ear air conduction |
| X | Left ear air conduction |
| △ | Masked right ear |
| □ | Masked left ear |
| < or > | Bone conduction |
These symbols create a pattern that helps specialists interpret hearing performance.
How to Read Your Hearing Test Results Step by Step
Step 1: Check Each Ear Separately
Audiograms measure:
- Right ear
- Left ear
One ear may hear better than the other.
Step 2: Look at the Average Threshold
Most speech understanding occurs around:
- 500 Hz
- 1000 Hz
- 2000 Hz
The average of these frequencies often determines hearing-loss severity.
Step 3: Identify the Hearing Loss Pattern
Your audiogram shape tells an important story.
Normal Hearing
- Thresholds stay between −10 to 20 dB.
High-Frequency Hearing Loss
- Better hearing at low pitches
- Reduced hearing at higher frequencies
Common signs:
- Difficulty understanding speech
- Trouble hearing children or women
Flat Hearing Loss
- Similar hearing levels across frequencies
Cookie-Bite Pattern
- Middle frequencies affected more
Reverse Slope Loss
- Low frequencies affected
Audiogram Patterns Comparison Table
| Audiogram Pattern | Appearance | Common Symptoms |
|---|---|---|
| Normal | Near top line | Clear hearing |
| Mild Loss | Slight downward shift | Miss soft speech |
| Moderate Loss | Mid-level drop | Difficulty in conversation |
| Severe Loss | Lower graph region | Need louder speech |
| High-Frequency Loss | Slopes downward right | Speech clarity problems |
| Conductive Loss | Air-bone gap | Sounds feel muffled |
| Sensorineural Loss | Similar air & bone drop | Permanent hearing reduction |
What Speech Frequencies Matter Most?
Human speech mostly falls between:
250–6000 Hz
Important speech sounds:
| Sound | Frequency |
|---|---|
| A, O, U | Low frequency |
| S, F, TH | High frequency |
| Children’s voices | Higher frequencies |
When these frequencies are affected, conversations become harder to follow.
Types of Hearing Loss Seen on an Audiogram
1. Conductive Hearing Loss
Occurs when sound cannot travel efficiently through the outer or middle ear.
Possible causes:
- Earwax
- Ear infection
- Fluid buildup
2. Sensorineural Hearing Loss
Occurs due to inner ear or nerve damage.
Common causes:
- Aging
- Noise exposure
- Genetics
3. Mixed Hearing Loss
Combination of conductive and sensorineural hearing loss.
What Your Audiogram Means for Hearing Aid Selection
Your audiogram helps determine:
- Hearing aid power level
- Technology requirements
- Number of channels
- Speech enhancement settings
- Bluetooth and connectivity options
Different hearing loss patterns may require different hearing aid programming.
Signs You Should Discuss Your Results With a Hearing Specialist
Book a consultation if:
- You frequently ask people to repeat themselves
- TV volume keeps increasing
- Conversations sound unclear
- You avoid social situations
- Family members notice hearing changes
- You struggle in noisy environments
Tips to Protect Your Hearing After Testing
- Keep headphone volume below 60%
- Use hearing protection in loud environments
- Schedule annual hearing checks
- Treat ear infections early
- Avoid inserting objects into the ear
Frequently Asked Questions (FAQ)
1. Is an audiogram difficult to understand?
No. Once you understand frequency (pitch) and decibel (volume), reading an audiogram becomes straightforward.
2. What numbers indicate hearing loss?
Typically, thresholds above 20 dB HL may suggest some degree of hearing loss.
3. Can hearing improve after an audiogram?
It depends on the cause. Temporary issues may improve, while permanent loss often requires management.
4. Does hearing loss always mean I need hearing aids?
Not always. Mild cases may only need monitoring and lifestyle adjustments.
5. How often should adults get a hearing test?
Adults should consider a hearing evaluation periodically, especially after age 50 or if symptoms appear.
6. Can I understand speech even with normal hearing results?
Yes. Some people may have normal thresholds but still experience difficulty in noisy environments.
Final Thoughts
Your audiogram is more than just a chart—it’s a detailed map of how you hear the world. Learning to read your hearing test results helps you understand whether hearing loss exists, how severe it is, and what the next steps may be.
Early interpretation and action can improve communication, confidence, and overall quality of life.
