About this test
A logarithmic sine sweep reveals how well speakers and headphones reproduce the full audio range and highlights rattles or resonances at specific frequencies. It also tests your hearing: mark the lowest and highest frequencies you hear. Choose the bass or treble range for a closer look.
How to use this test
- Set a low volume and choose a range and duration.
- Start the sweep and press “I hear it now” when the tone becomes audible.
- Press again when it disappears at the top to record your upper limit.
Frequently asked questions
What frequency range can people hear?
Roughly 20 Hz to 20 kHz when young. Most adults hear up to 15–17 kHz.
Why does a frequency sound much louder than others?
Speakers and rooms have resonances. Rattles at one frequency can also point to a loose part.