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Speaker Test

Find the side that went quiet.

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Nothing playing

The tone is generated here rather than downloaded, so it cannot be a broken file. Start at a low volume: a pure tone sounds louder than music at the same level.

How to test your speakers

  1. 1 Put the volume at a comfortable level and press the left panel. A tone should come from the left speaker only, and from the left earcup if you are wearing headphones.
  2. 2 Do the same on the right. Tick each side once you have heard it; the verdict appears when both are confirmed.
  3. 3 Use the sweep to catch a channel that is quiet rather than dead. A side that fades in and out points at a cable or a jack instead of a driver.
  4. 4 If both sides play here but not in your player, the fault is in that program or in the output device it is using, not in the speakers.

Frequently asked questions

One side is silent. What now?
Work outwards from the speaker: try headphones in the same port, then the same speakers on another device. If the silence follows the port, it is the socket or the sound settings; if it follows the speaker, it is the speaker.
Both sides sound the same on the left and right test.
Then the audio is being mixed to mono somewhere, which is common with a mono Bluetooth profile, some accessibility settings and cheap adapters. Check the sound settings for a mono switch before blaming the hardware.
Why a tone rather than music?
Because a tone leaves nothing to interpret. Music is mixed differently on each channel, so a quiet side can look like an artistic choice; a steady tone at one pan position cannot.
Is anything downloaded or recorded?
No. The tone is generated by your browser as it plays, and nothing is recorded, so the page needs no files and no microphone.

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