Hearing Range by Age
Play the same test tone for a teenager and their parent standing in the same room, and it is entirely possible for one of them to wince and the other to check whether the speaker is broken. Neither is wrong, and neither device is at fault. The top edge of human hearing recedes with age for almost everyone, slowly enough that nobody notices it happening to their own ears, which is exactly why the gap between a fifteen-year-old and a fifty-year-old can be an entire audible octave.
A range that loses its top edge, not its middle
The gradual, age-related decline in hearing sensitivity has a name: presbycusis. Wikipedia's summary of the condition, itself drawing on the clinical literature, describes it as affecting high frequencies before low ones and states that measurable deterioration can begin as early as age 18 — long before anyone would describe themselves as having "hearing loss". The World Health Organization's fact sheet on deafness and hearing loss puts a population figure on the far end of the same process: over 25% of people older than 60 are affected by disabling hearing loss. Those two facts describe the same slope from opposite ends — one says it starts early, the other says how far it has gone by the time it is disabling for a quarter of an age group.
What the top of the range does, decade by decade
Population studies that test frequencies above the standard audiogram range (a technique called extended high-frequency audiometry) show the decline directly. A 2021 study of 162 otologically normal adults at Shandong Provincial ENT Hospital in China measured the median threshold at 16 kHz for each decade of adult life, and it is a steep curve rather than a straight line:
| Age band | Median threshold at 16 kHz | What that means in practice |
|---|---|---|
| 21-30 | 25 dB HL | Every subject under 30 in the study could respond to the tone at a level close to a young reference ear. |
| 31-40 | 50 dB HL | The tone has to be roughly twenty-five decibels louder to reach the same ear — the single biggest jump between any two adjacent decades in the data. |
| 41-50 | 55 dB HL | A further small rise on top of the thirties' loss. |
| 51-60 | 55 dB HL | The median holds roughly flat, but see the note on response rate below — fewer people in this band could respond at all. |
| 61-70 | Response rate at 16 kHz fell to 16.1% — too few subjects responded for a median to mean much. | |
A separate normative study, published in Audiology Research and available via PubMed Central, grouped adults more coarsely — 18-40 versus 40-70 — but tested more frequencies across the top of the range. It found the two bands agreeing closely at 9 kHz (5 dB HL versus 20 dB HL median) and diverging sharply by 14 kHz (17.5 dB HL versus 70 dB HL median). Both studies agree on the shape even though they slice age differently: the decline is small and slow at the bottom of the extended high-frequency band and steep at the top of it, which is exactly the octave or two that carries the "can you still hear that?" party trick.
Why 20 kHz is a young person's ceiling, not everyone's
The "20 Hz to 20 kHz" figure printed on speaker boxes and headphone spec sheets describes the outer edge of what a healthy young ear can register under good conditions — it was never a guarantee extended to every listener, at every age, for life. Even that describes the extreme case: a 2022 audiometric survey of adults aged 18-29 with no reported hearing complaints found a median threshold at 18 kHz of roughly 17 dB HL in both ears, already well above the near-zero thresholds the same subjects showed at 8-9 kHz. In other words, the slope toward the ceiling has already started in ears young enough to be used as the textbook baseline. The last kilohertz or two before 20 kHz has always been the thinnest margin in the range, present in the young and gone early in most people.
The most widely repeated demonstration of that margin is the "mosquito tone": a roughly 17.4 kHz signal used, among other things, in a commercial device intended to be audible mainly to young people and marketed on that basis. Wikipedia's account of the device, summarizing the manufacturer's own specifications rather than an independent hearing study, states that the tone is typically audible only to people under about 25. That figure is a manufacturer's marketing claim relayed by an encyclopedia entry, not a clinical measurement — useful as an illustration of how fast the top edge narrows, not as a diagnostic cutoff for any individual.
Why this is a range, not a threshold
Every figure above is a median or a response rate across a group, not a wall that a given ear hits on a given birthday. The 51-60 group in the Shandong study held a similar median to the 41-50 group, yet response rates were already falling — meaning the group itself was splitting between people still tracking close to the young norm and people who could no longer respond at 16 kHz at all. A single number describing "what people your age can hear" erases exactly the spread that determines which one you are. The formal way to describe that spread — the full statistical distribution of hearing threshold against age, not just a median — is the job of ISO 7029, the international standard on the subject. It sits behind ISO's paywall, so the figures in this article come from the peer-reviewed studies cited above rather than from the standard itself.
A median is not a diagnosis, and this page is not trying to give one. Hearing loss also has causes with nothing to do with age — noise exposure being the largest one — and a threshold measured through a browser and a pair of unknown headphones cannot separate "getting older" from "went to too many loud shows" from "these earbuds roll off early." If a result concerns you, an audiologist has calibrated equipment and a sound booth; this page and the tool it pairs with do not. What this site's own hearing range test can do is give you one honest, repeatable data point from your own ears and your own equipment — not a curve, and not a verdict, but a real number to compare against your own past results rather than against a stranger's decade.
Age is one input into how high a signal has to reach before it is audible at all; loudness is the other, and it carries its own risks independent of frequency. How Loud Is Too Loud covers what actually damages hearing at any age, and if the question that brought you here was really about a Bluetooth pair sounding thin at the top, Bluetooth Audio Latency by Codec covers a different way high frequencies get lost before they ever reach your ears. And if a speaker has gone silent rather than merely thin at the top, that is a hardware question this page cannot answer — Dead, Blown or Miswired: Diagnosing a Silent Speaker covers telling a dead driver from a damaged one from a wiring fault.
Every figure above links to the study it came from. Where a claim is a manufacturer specification relayed by a secondary source, the paragraph says so rather than crediting the underlying standard or study it did not come from.