Left Right Channel Balance Test
Use this before changing balance settings or assuming one speaker/headphone side is dead.
Audio output check
Use a comfortable volume. Test tones are generated locally in your browser.
Now playingIdle
Tone440 Hz
DeviceOK can verify that browser audio reaches your selected system output path, but browsers do not reliably expose every physical speaker/headphone identity.
What happened?Choose the result you observed.
Privacy: Audio is generated locally.
What this test tells you
This test checks
- Left output
- Right output
- Perceived channel balance
How to read the result
Perceived differences can come from hardware, balance settings, fit, room acoustics or hearing asymmetry.
The browser does not measure acoustic sound pressure from your speakers.