High Frequency Hearing Test
A professional-grade tool to test your upper frequency limits. Isolate your left and right ears, use the auto-sweeper, and discover your true Hearing Age.
Sweep Mode: The pitch automatically increases. Hit STOP the exact moment you can no longer hear anything.
Why Test Left and Right Ears Independently?
Most online hearing tests push audio to both ears equally. However, asymmetrical hearing loss (where one ear is worse than the other) is incredibly common. It can be caused by occupational noise (like shooting a rifle), wearing a single earbud frequently, or simply resting on one side of your head during sleep.
Our professional tool uses advanced Web Audio API panning to completely isolate the signal, allowing you to test your exact frequency drop-off for your left and right ears individually.
How Auto-Sweep Works
Instead of manually guessing which frequency you can hear using a slider, our Auto-Sweep tool slowly and smoothly glides the pitch upward from a very audible 4,000 Hz all the way into the ultrasonic range (22,000 Hz). The moment the sound fades entirely into silence for you, you hit the stop button. This guarantees a highly accurate, unbiased measurement of your upper limits.
Understanding Hearing Age
As humans age, the tiny stereocilia (hair cells) inside the cochlea naturally degrade. Because the cells responsible for detecting high frequencies are located at the entrance of the cochlea, they receive the most wear and tear over a lifetime.
- Under 25 Years: Typically can hear up to 17,000Hz - 19,000Hz.
- 30-40 Years: Limits often drop to 15,000Hz - 16,000Hz.
- Over 50 Years: It is completely normal to lose hearing above 12,000Hz.
Frequently Asked Questions
Why can my child hear a sound but I cannot?
Children have pristine cochlear hair cells and can often hear frequencies up to 20,000Hz or even 22,000Hz. These "mosquito tones" are completely inaudible to most adults over the age of 30 due to natural presbycusis (age-related hearing loss).
Can this replace a doctor's audiogram?
No. This tool measures your absolute highest frequency limit. A clinical audiogram tests a range of frequencies (usually 250Hz to 8000Hz) at varying decibel levels to find your exact threshold of hearing across the speech spectrum. If you suspect hearing damage, always consult an audiologist.
Is it safe to play 20,000Hz tones at high volume?
No! Even if you cannot consciously hear the tone, the acoustic energy is still physically hitting your eardrum. Playing high frequencies at maximum volume can cause unseen damage. Always keep your volume at a moderate level.