Speaker & Headphone Test
Turn your volume down first, then play each test. Check that left and right are not swapped, how low and high your speakers go, and whether they are wired in phase.
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Range & wiring
How to use Speaker & Headphone Test
- Lower your volume, then raise it gradually.
- Play Left, Center and Right — the sound should come only from that side.
- Try the sweep, bass and phase tests to check range and wiring.
Formula & assumptions
- Start with a low volume — test tones can be loud, especially in headphones.
Questions
Left and right are swapped — what now?
Check how the headphones are worn (the L/R markings), the cable or Bluetooth device, and any “swap channels” or mono audio setting in your system accessibility options.
How do I use the phase test?
In phase, the tone sounds centred and full. Out of phase it sounds hollow and hard to place; if the “in phase” one sounds like that instead, one speaker is wired backwards.
Why can’t I hear the highest frequencies?
Most adults can’t hear above 15–17 kHz, and many small speakers can’t reproduce very low bass. That’s normal.