How to use this test
Set a low volume
Start quietly, especially with headphones.
Play one tone
Choose a low, mid or high tone and listen for audible output.
Check the route
If there is no sound, confirm the selected browser and system output device.
What we check
The page creates a short oscillator tone only after you choose a control.
Hearing a tone shows that the browser sent audio to its current output route.
What this test can’t tell you
It is not a hearing test, frequency-response measurement, sound-quality rating or speaker-health diagnosis.
Something not working?
There is no sound
Check device volume, tab mute and the selected system output.
A tone is uncomfortable
Stop playback and reduce volume before trying again.
Common questions
Does this test both stereo channels?
No. Use the headphone test for a left and right channel check.
Does it test my hearing?
No. The tones are not calibrated for hearing assessment.