You've had your hearing test, and the audiologist has handed you a chart covered in lines, circles, and crosses. It looks a bit like a graph from school, and if you're not sure what it all means, you're certainly not alone. Many people leave their appointment unsure how to interpret the results they've been given. Understanding your audiogram is the first step towards taking control of your hearing health, and it's far simpler than it looks.
What Exactly Is an Audiogram?
An audiogram is a visual representation of your hearing ability. It's the chart your audiologist creates during a hearing test, plotting how well you hear different sounds at various pitches and volumes. Think of it as a personalised map of your hearing.
At Fresh Hearing, whether you visit us in Bolton or Haslingden, we always take the time to walk you through your audiogram in detail. But having a solid understanding of what you're looking at can help you feel more confident about your results, ask better questions, and make more informed decisions about your hearing care.
Breaking Down the Audiogram Chart
The audiogram has two axes, just like any graph:
- The horizontal axis (left to right) shows frequency, measured in Hertz (Hz). This represents the pitch of sounds, from low-pitched on the left (like a rumble of thunder) to high-pitched on the right (like birdsong or a child's voice). Typical audiograms test from 250 Hz up to 8,000 Hz.
- The vertical axis (top to bottom) shows intensity, measured in decibels (dB). This represents volume. The softest sounds are at the top of the chart, and louder sounds are at the bottom. It might feel counterintuitive, but the further down the chart your results appear, the louder a sound needs to be before you can hear it.
During your test, you'll hear a series of tones at different pitches and volumes. Each time you respond, the audiologist records the softest sound you can detect at that frequency. These points are then plotted on the chart.
Symbols on the Audiogram
You'll notice different symbols for each ear:
- O (often in red) represents your right ear
- X (often in blue) represents your left ear
Some audiograms also include additional symbols for bone conduction testing, which helps determine whether hearing loss is caused by issues in the outer/middle ear or the inner ear. Your audiologist will explain these if they're relevant to your results.
Understanding the Numbers: What's Normal and What's Not
Hearing levels on an audiogram are grouped into categories. Here's a straightforward guide to what the decibel ranges mean:
- 0 to 20 dB: Normal hearing. You can pick up soft sounds without difficulty.
- 21 to 40 dB: Mild hearing loss. You might struggle with quiet conversations, especially in noisy environments like a busy café in Bolton town centre.
- 41 to 55 dB: Moderate hearing loss. Following group conversations becomes noticeably harder, and you may find yourself turning up the television.
- 56 to 70 dB: Moderately severe hearing loss. You'll likely have difficulty hearing normal speech without amplification.
- 71 to 90 dB: Severe hearing loss. Only loud sounds and speech are audible without hearing aids.
- 91 dB and above: Profound hearing loss. Most sounds are inaudible without powerful hearing devices.
It's worth noting that your hearing may fall into different categories at different frequencies. For example, many people have normal hearing in the lower pitches but mild or moderate loss in the higher frequencies. This is extremely common, particularly with age-related hearing loss, and it explains why you might hear that someone is speaking but struggle to make out what they're saying.
Common Audiogram Patterns and What They Mean
Audiologists don't just look at individual points on your chart. The overall shape of your audiogram tells an important story.
- Sloping pattern: Hearing is better in the low frequencies and drops off in the higher ones. This is the most common pattern we see at our clinics in Bolton and Haslingden, and it's typical of age-related hearing loss or noise-induced damage. People with this pattern often say they can hear men's voices more clearly than women's or children's.
- Flat pattern: Hearing loss is roughly the same across all frequencies. This can indicate certain medical conditions or types of conductive hearing loss.
- Rising pattern: Hearing is worse in the low frequencies and better in the high ones. This is less common but does occur.
- Notch pattern: A dip at a specific frequency (often around 4,000 Hz) with better hearing on either side. This is a classic sign of noise-induced hearing loss and is common in people who've worked in noisy environments or been exposed to loud sounds without adequate protection.
What Your Audiogram Means for Everyday Life
Numbers on a chart are one thing, but what matters most is how your hearing affects your daily life. Here are some practical ways to connect your results to real-world situations:
- If your loss is in the high frequencies, you may find it hard to hear consonant sounds like "s," "f," and "th." This makes speech sound mumbled or unclear, even though you can tell someone is talking.
- If you have mild loss across several frequencies, you might cope well in quiet rooms but struggle in noisier settings, like busy pubs, family gatherings, or walking along a bustling high street.
- If your results differ between ears, you may find it harder to tell which direction sounds are coming from, which can be particularly important for safety when crossing roads or in busy car parks.
Questions Worth Asking Your Audiologist
Armed with a better understanding of your audiogram, here are some helpful questions to raise at your appointment:
- Has my hearing changed since my last test?
- What type of hearing loss do I have, and what's likely causing it?
- Which everyday situations will be most affected by my results?
- Would hearing aids benefit me at this stage?
- How often should I have my hearing rechecked?
At Fresh Hearing, we genuinely welcome these conversations. We believe you deserve to fully understand your own hearing health, not just be told a result.
Taking the Next Step
Your audiogram is a powerful tool, but it's only valuable if you act on what it reveals. Even mild hearing loss can have a significant impact on your confidence, your relationships, and your overall wellbeing. The earlier you address changes in your hearing, the better the outcomes tend to be.
If you've had a hearing test elsewhere and aren't sure what your results mean, or if it's been a while since your hearing was last checked, we're here to help. Fresh Hearing offers comprehensive hearing assessments at our clinics in Bolton and Haslingden, with next day and evening appointments available to fit around your schedule. Get in touch today and let us help you make sense of your hearing health.