LIVE TEST
Stereo speaker test
Identify left and right audio channels with short, quiet tones.
Add your observation
Your judgement, not a hardware certification. Saved on this browser for 24 hours.
01 / Instructions
How to use this test
Lower your device volume first. Play Left, Right and Both in turn. Listen for the expected side.
02 / Next step
Understand your result
If both tests sound identical, check mono accessibility settings and cable connections. Confirm with headphones if possible.
03 / Testing methodology
What this test cannot tell you
You judge the sound: the page cannot know what you hear. This is not a hearing test or a frequency-response measurement.
