Device tests
Speaker test
Play a test tone through your left, right or both speakers to check they work and that the channels are not swapped.
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How to use it
- 1Turn your volume up to a comfortable level.
- 2Click Left, Right or Both to play a short tone.
- 3Confirm the sound comes from the expected side — if Left plays on the right, your channels are swapped.
Frequently asked questions
- I hear nothing — why?
- Check your volume is not muted, the right output device is selected, and the browser tab is not muted.
- What is this useful for?
- Confirming both speakers work and that stereo channels are wired correctly before a call, film or music.
- Does it work with headphones?
- Yes — it is a great way to check left and right balance on headphones too.