Hearing frequency lab
Find the highest tone you can still hear — then see what that says about your biological / ear age.
- Start quiet (volume 2–3). Use headphones if you can.
- Slider is stretched for hearing age: ~25% ≈ 500 Hz, ~50% ≈ 2 kHz, ~75% ≈ 12 kHz, 100% ≈ 30 kHz.
- Slide up until the tone vanishes, nudge down until you hear it, then press I can still hear this.
Result — your rough biological / ear age
Marked frequency: —
Browser demo for curiosity — not a clinical audiogram. Keep volume low, especially above 8 kHz.
I teach acoustics labs at Portland State. Every semester someone walks in sure they have perfect hearing. We put on headphones, start near 1 kHz, then climb. Around 14–15 kHz a few faces go blank. By 17–18 kHz, almost everyone over 25 is guessing.
That gap is not just “music taste.” High-frequency hearing is one of the earliest clocks of sensory aging. Calendar age is one number. The highest tone you can still hear is another — a rough biological / ear age shaped by traffic, headphones, stress, and sleep.
Use the lab above. Mark the highest tone you can hear. Read the result. Then come back in a few days with the same headphones and see if the number moved.
Hearing frequency ↔ biological age (data-backed guide)
Clinics measure thresholds across many frequencies. At home, the useful shortcut is your high-frequency ceiling — the highest pitch you can still detect at a comfortable volume. Teaching charts and aging/noise studies line up like this:
Typical highest audible tone vs approximate ear age
| Approx. age band | Highest still heard (approx.) | Lowest practical (approx.) | Notes from research / teaching use |
|---|---|---|---|
| 16–20 | ~17–20 kHz | ~20 Hz | Teen / early adult; high end still sharp |
| 20–25 | ~15–17 kHz | ~20 Hz | Young adult; city noise already bites some people |
| 25–35 | ~12–15 kHz | ~20–25 Hz | Headphones + commute often show here |
| 35–45 | ~10–13 kHz | ~25–30 Hz | Early middle-age high-tone pattern |
| 45–55 | ~8–11 kHz | ~30–40 Hz | Common after years of urban / leisure noise |
| 55–65 | ~6–9 kHz | ~40–60 Hz | “Air” and birds fade; speech still mostly OK |
| 65–75+ | ~4–7 kHz or lower | ~50–80 Hz | Age + cumulative noise; get a clinic test if sudden |
X-axis: age in years. Y-axis: frequency in Hz (log scale). Each dot is labeled with its value. Green = typical highest tone still heard; orange = approximate lowest practical tone. Teaching ranges aligned with NIDCD/CDC guidance on age-related and noise-induced loss — not a personal diagnosis.
Sources informing these bands: NIDCD on presbycusis, NIDCD on noise-induced loss, and NIDCD hearing statistics. Exact cutoffs vary by person, headphones, and room noise.
What is the audible range, really?
Textbooks say humans hear about 20 Hz to 20,000 Hz. That is a classroom average, not a promise for your ears today.
- Below ~20 Hz — mostly felt as vibration.
- 20–250 Hz — bass, traffic rumble, HVAC.
- 250–4,000 Hz — most speech clarity.
- 4,000–8,000 Hz — consonants, birds, alarms; early noise damage often shows near 4 kHz.
- 8,000–20,000 Hz — the “sparkle.” This ceiling falls first with age and loud living — and it is what our ear-age estimate uses.
City noise, stress, pollution — why ear age runs ahead of the calendar
NIOSH and NIDCD both describe noise-induced hearing loss as gradual and cumulative — not only a single loud night. Traffic, transit platforms, construction, clubs, and earbuds turned up to mask the city all add exposure minutes that stack over years.
Researchers at the Medical University of South Carolina note that aging, loud noise, and certain ototoxic exposures share similar inner-ear damage patterns, with high frequencies often affected first. CDC occupational data show age is the strongest predictor of hearing loss in adults — but people with years of hazardous noise exposure start from a worse baseline.
Stress and poor sleep do not damage hair cells the way a jackhammer does, but they keep you in loud environments longer and nudge you toward higher volume. NIDCD guidance on everyday noise is blunt: if you need to shout over background sound, that environment is already risky for long-term hearing.
What slows the decline (and what speeds it up)
Slows it: keep average listening nearer 80 dB when you can; earplugs on metro platforms and at shows; quiet hours so hair cells recover; sleep away from street windows; retest this page weekly with the same headphones.
Speeds it up: sleeping with music on; standing next to speakers “for one song”; ignoring ringing after a night out; raising volume to drown the city instead of blocking the city.
You cannot undo every past year with a green smoothie. You can stop adding damage this month — and watch whether your marked frequency climbs back after quiet weeks.
Share it, then come back
After you mark a result, use Share result. Copy the message with your name (optional) and the link. Ask a friend: do you also want to check your biological age from your hearing?
One test is a snapshot. Three tests are a story. If conversation in restaurants is getting harder, skip the browser toy and book a real audiogram.
— Jerry Thomas
Portland State University
Sources
- NIH / NIDCD — age-related hearing loss (presbycusis)
- NIH / NIDCD — noise-induced hearing loss
- NIH / NIDCD — how everyday noise damages hearing
- NIH / NIDCD — quick statistics on hearing
- CDC / NIOSH — noise-induced hearing loss overview
- CDC / NIOSH — occupational hearing loss
- Medical University of South Carolina — Sha Lab (acquired hearing loss research)
- Portland State University
Educational tool only. Not medical advice.
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