Frequency Response Test
Use headphones or full-range speakers. Start at low volume—sine tones above 10 kHz can damage hearing without feeling loud.
0Hz
Ready
Ready
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Manual tone
Your hearing limits
- Lowest audible
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- Highest audible
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- Audible span
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- Age-typical ceiling
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Healthy 20-year-olds hear up to ~18–20 kHz; presbycusis drops ~2 kHz per decade. A 1 kHz ceiling usually means speaker roll-off, not ears.
How to use
- Use headphones or full-range speakers; set system volume to 20–30% before starting.
- Choose sweep duration (10–60 s) and press Start sweep.
- Press I hear it now (low) when sound first appears; press Stopped hearing (high) when it fades near the top.
- Use Manual tone to hold any frequency for A/B comparisons or resonance checks.
FAQ
Does this replace an audiogram?
No. It is a browser screening aid—the tighter limit is usually your playback device, not your ears, especially below 80 Hz or above 12 kHz on laptop speakers.
Why log-scale?
Equal time slices represent equal frequency ratios, matching how audio engineers chart speaker response and how human pitch perception works.
Overview
Frequency Response Test generates pure sine tones from 20 Hz through 20 kHz. A logarithmic sweep lets you mark the lowest frequency you notice and the highest you still hear—useful for mapping personal hearing limits or spotting roll-off in headphones, earbuds, and monitors.