Hearing frequency range test
Interpret a frequency sweep: compute the measured hearing range, derive the age-based expected upper limit (a simplified ISO 7029 rule), and separate genuine loss from device limits.
Runs in your browserEvery computation happens in your browser — your data never leaves this device.
Interpretation
Measured range, expected limit and deviation.
Enter the sweep results to interpret
Measured max Hz: 0 · Expected Hz: 0 · Deviation Hz: 0 · Points tested: 0
What this tool does
- Test headphones and your own limit: answer heard/not heard per octave and get the measured upper limit immediately.
- Tell hearing loss from device limits: when the result hits the device ceiling it says so instead of blaming your ears.
- Age comparison: a 40-year-old man is expected around 16 kHz, so you can see whether you fall clearly below that.
- Long-term monitoring: record every few months and watch whether the upper limit keeps dropping.
Example
Input
y y y y y y y y y y y y y y y y y y y y y y y y y n n n n n n
Output
测试者：30 岁，男；设备可靠上限 16000 Hz 扫描频点：31 个（共 31 个可选频点，从 20 Hz 到 20000 Hz） 实测可听范围：20 Hz – 5000 Hz 同龄参考上限：约 18000 Hz（经验式 20000 − (年龄 − 20) × 200，女性 +1500） 偏差：-13000 Hz 逐频点结果： 20 Hz：听到 25 Hz：听到 32 Hz：听到 40 Hz：听到 50 Hz：听到 63 Hz：听到 80 Hz：听到 100 Hz：听到 125 Hz：听到 160 Hz：听到 200 Hz：听到 250 Hz：听到 315 Hz：听到 400 Hz：听到 500 Hz：听到 630 Hz：听到 800 Hz：听到 1000 Hz：听到 1250 Hz：听到 1600 Hz：听到 2000 Hz：听到 2500 Hz：听到 3150 Hz：听到 4000 Hz：听到 5000 Hz：听到 6300 Hz：没听到 8000 Hz：没听到 10000 Hz：没听到 12500 Hz：没听到 16000 Hz：没听到 20000 Hz：没听到（超出设备可靠上限） 结论：实测上限比同龄参考值低 13000 Hz，建议到耳鼻喉科做一次纯音测听（尤其长期使用耳机或处于噪声环境时）。 说明：低频段（20–60 Hz）多数耳机与手机扬声器无法有效还原，低频结果主要反映设备能力而非听力；本工具不播放音频，只做判读。
Age-based upper limit: 20000 − (age − 20) × 200 Hz, plus 1500 Hz for women.
Frequently asked questions
Where does the expected limit come from?
A linear simplification of ISO 7029: f_max ≈ 20000 − (age − 20) × 200 Hz, plus 1500 Hz for women, clamped to 2000–20000 Hz. A 40-year-old man therefore expects 20000 − 20 × 200 = 16000 Hz. Real populations vary widely, so treat it as a handy reference.
Why does 16 kHz become unreliable?
Because most headphones and phone speakers roll off around 16 kHz; higher points are either attenuated or simply not produced. When the measured limit reaches the device ceiling the tool says the real limit cannot be judged rather than giving a verdict.
What do the low frequencies tell me?
Almost nothing about hearing. Reproducing 20–60 Hz needs large drivers or dedicated headphones, and ordinary devices are weak there, so 'not heard' usually reflects the device. The result always states this.
What is the input format?
Answer in scan order (20, 25, 32 … 16000, 20000 Hz) with heard/not heard, using y/n, 1/0, 是/否 or 听到/没听到 separated by spaces or commas. Only the points you supply are interpreted, up to 31.
Does it play sound?
This module only interprets results and plays nothing. The actual test needs the page to synthesise a sine wave at each frequency for you to confirm; even then, browser audio and consumer headphones are neither level-calibrated nor frequency-flat, so the result is a rough guide only.
Can it diagnose hearing?
No. It only tells you roughly the highest frequency you could hear at that device setting and volume. A real assessment needs a soundproof booth, a calibrated audiometer and a professional operator.
Keywords：听力频率范围可听范围高频上限频率扫描hearing rangeISO 7029耳机测试