Headphone Frequency Test
Use a logarithmic frequency slider for tone generation, then run a controlled sweep that stops automatically.
Start with a low device volume. High-frequency tones and bass tests may sound louder or quieter than expected. Stop immediately if a sound is uncomfortable, painful or unexpectedly loud.
Idle
Frequency Sweep
The sweep stops automatically when it reaches the end.
Current Frequency: 20 Hz
Guide reviewed on . Tests are browser-based, practical listening checks unless otherwise noted.
What a frequency sweep can reveal
A frequency test helps you listen for dropouts, buzzes, rattles, sudden level changes, and device limits across the audible range. It is useful when checking new headphones, comparing EQ presets, or diagnosing a sound that only appears on certain notes.
The test does not produce a frequency response graph. Human hearing, headphone fit, playback hardware, room noise, and browser output all affect perceived loudness.
Safe frequency testing method
Begin at low volume and avoid turning up very high frequencies just because they seem quiet. High tones can be uncomfortable and may be filtered by the device or outside your hearing range.
For a controlled pass, run a slow sweep once, write down frequencies where you notice rattle or sudden changes, then retest only those bands at a lower volume.
Interpreting missing tones
Very low frequencies may be felt more than heard, especially on small earbuds. Very high frequencies may be limited by age, hearing history, sample rate, Bluetooth codec, browser processing, or the headphone itself.
FAQ
What frequencies can headphones reproduce?
Many headphones are advertised around 20 Hz to 20 kHz, but real output depends on model, fit, volume and source device.
Can humans hear 20 kHz?
Some people can hear very high frequencies, but high-frequency hearing often varies with age, environment and playback level.
Why can't I hear very high frequencies?
The tone may be outside your hearing range, too quiet, filtered by the device, or limited by your headphones.