オンライン聴力感度テスト (可聴周波数チェック)

Healthy human hearing in young adults ranges from 20Hz to 20,000Hz (20kHz). As people age, natural high-frequency loss (presbycusis) gradually reduces upper hearing limits to 12kHz–16kHz.

The test plays calibrated high-frequency sine waves starting at 8,000Hz (8kHz) and climbing step-by-step up to 20,000Hz (20kHz). Listen at quiet, comfortable volume levels and note the highest frequency tone you can perceive.

Inability to hear extreme high frequencies can be caused by natural age-related hearing decline, prolonged loud noise exposure, or hardware limitations of budget headphones and laptop speakers.

No. Small laptop micro-speakers and budget earbuds experience severe high-frequency roll-off above 14kHz–16kHz. High-quality studio headphones or calibrated IEMs are recommended for accurate testing.

Presbycusis is age-related sensory hair cell loss in the cochlea. High-frequency perception typically begins declining gradually after age 20 to 25.

Set your system volume to a comfortable, moderate level using a standard speech or 1kHz reference tone. Never increase volume to force hearing ultra-high frequencies, as excessive volume can damage hearing.

Tinnitus is a condition causing ringing or buzzing sensations in the ears. High-pitched tinnitus can overlap with 8kHz–12kHz test tones, making detection harder.

An online test is an informal educational screening tool. A clinical audiogram is performed by an audiologist in a soundproof booth using calibrated bone-conduction transducers.

Use high-attenuation earplugs at loud concerts, keep headphone listening volume below 60% of maximum, and take frequent quiet breaks during long listening sessions.

When sine waves reach your personal hearing ceiling or driver playback limits, you may hear mechanical transducer click artifacts rather than a continuous tonal pitch.