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Frequency Range & Sweep

Available

Explore audio frequency response across the 20 Hz to 20,000 Hz test range with discrete tones and continuous logarithmic sweeps.

Safe listening:High frequencies (>10 kHz) and loud low-frequency tones can cause ear fatigue. Start with a conservative volume.
Tone frequency

1 kHz

Status
Idle
20 Hz100 Hz1 kHz10 kHz20 kHz

Frequency sweep

20 Hz → 20,000 Hz
Sweep duration:10s
Discrete test tones
Manual frequency slider

What to listen for

  • Continuous Sweep: During a sweep, sound pitch should rise smoothly without sudden dropouts or distortion.
  • Bass Extension: Note where low bass tones first become audible on your headphones (typically around 25 Hz – 40 Hz).
  • Upper Treble: High-frequency audibility varies between people and playback devices. Inability to hear above 14–16 kHz is common natural human variance.

Technical context

Web Audio generates signals across the configured 20 Hz–20,000 Hz range. Actual acoustic reproduction depends on your playback device, physical fit, and environment. High-frequency perception naturally varies between listeners.