Diagnostic Hearing Evaluations
A hearing test is where better hearing begins. Before anyone can recommend a device, a therapy, or even reassurance, they need an accurate picture of how well you hear, what kind of hearing loss you have, and where along the pathway from ear canal to brain the trouble lies. At California Hearing Center, a diagnostic hearing evaluation answers those questions with objective measurements rather than guesswork, so any next step is built on real data about your ears.
Hearing rarely fades all at once. For most people it slips gradually, and the brain quietly compensates until conversations in restaurants, the television volume, or a spouse's comments make the change hard to ignore. Testing turns that vague sense of missing words into a clear profile: which pitches you struggle with, how well you understand speech, and whether the cause is something reversible like earwax or a permanent change in the inner ear.
Our audiologists have provided evaluations on the Peninsula for 33 years. Whether you are noticing a first change, following up on tinnitus, or rechecking a known loss, we walk you through every result so you leave understanding your own hearing and your options.
At a glance
- A diagnostic evaluation identifies the degree, type, and likely cause of hearing loss with objective measurements.
- We check for reversible causes like earwax before assuming a loss is permanent.
- You leave understanding your own audiogram and your realistic options, whatever they are.
Your initial hearing consultation
Every evaluation starts with a conversation, not a machine. One of our audiologists asks about when you first noticed a change, where listening is hardest for you, your medical and noise-exposure history, any tinnitus or balance symptoms, and the medications you take. This case history frequently points to the cause before a single tone is played, and it helps us tailor the testing that follows to your specific concerns.
Looking inside the ear first
Next we examine your ear canals and eardrums with an otoscope. This simple step rules out obstructions such as impacted earwax, which is a common and fully reversible cause of muffled hearing. If wax is blocking the canal, clearing it may resolve the problem on its own, which is why we check before assuming a loss is permanent. Our earwax removal is available in the same visit when needed.
Pure-tone audiometry
The core of the evaluation is audiometric testing. In a quiet booth you listen for tones across a range of pitches and volumes, signaling each time you hear one. This maps the softest sound you can detect at each frequency and defines the degree of your hearing loss, from mild to profound. Comparing air-conducted and bone-conducted results also tells us whether the loss is conductive, sensorineural, or a mix, which shapes the treatment path.
Speech testing
Detecting a tone is not the same as understanding words, so we also measure how clearly you recognize speech and at what volume it becomes comfortable. Because real conversations happen against background noise, speech-in-noise measures are especially telling. They often explain the classic complaint of hearing that people are talking but not being able to follow them in a crowded room.
Tympanometry and middle-ear checks
Tympanometry gently varies air pressure in the ear canal to see how your eardrum and the tiny middle-ear bones move. It helps identify fluid, pressure problems, or issues with the eardrum itself, distinguishing a middle-ear cause from an inner-ear one and adding context to the audiogram.
Otoacoustic emissions (OAE)
Otoacoustic emission testing measures the faint sounds healthy outer hair cells produce in response to stimulation. Because it reflects the health of the inner ear's sensory cells, OAE testing gives us a finer read on cochlear function and can flag early changes, which makes it useful for monitoring noise or medication exposure over time.
Reviewing your audiogram together
When testing is complete we sit down with your audiogram, the chart that plots your results. We show you exactly which pitches are affected, what your speech scores mean, and how your profile compares to normal hearing. Understanding the picture is what lets you make an informed decision, so we take the time to explain it plainly rather than hand you a printout.
From results to a plan
The evaluation defines the destination; the treatment defines the route. Depending on what we find, the next step might be nothing more than monitoring, wax management, a referral, a hearing aid fitting, or a tinnitus consultation. Whatever the result, we lay out your realistic options so the choice stays yours.
Frequently asked questions
A few questions worth asking
How long does a hearing test take?
A full diagnostic evaluation, including the case history, ear exam, testing, and a review of your results, typically takes about an hour. We would rather take the time to explain your audiogram than rush you out with numbers you do not understand.
Does a hearing test hurt?
No. Hearing testing is painless and non-invasive. You will listen for tones and repeat words, and tympanometry involves only a brief, gentle change in air pressure that feels like a slight fullness in the ear.
When should I get my hearing checked?
Consider an evaluation if you turn the television up more than others prefer, ask people to repeat themselves, struggle to follow conversation in restaurants, or notice new ringing in your ears. If a hearing change comes on suddenly, especially in one ear, treat it as urgent and seek care right away.
Will I need hearing aids after the test?
Not necessarily. Many evaluations lead to monitoring, wax removal, or simple reassurance. If the results do point toward amplification, we explain why and walk you through the options; the decision is always yours to make.