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Stereo Test
Clear left vs right channel test โ know exactly which side is playing.
Which channel is playing? Click a button โ only that side should sound.
Ready โ choose left or right
Purpose of stereo testing
Games, music production, and films rely on correct stereo imaging. This tool isolates each channel so you immediately know if left and right are swapped or summed to mono.
Best practice
Use wired headphones first โ Bluetooth can re-encode stereo. Sit centered between speakers if testing a room system. Keep volume moderate; the test uses a 440 Hz sine wave.
Related checks
After confirming channels, run Speaker Test for broader hardware verification or Hearing Test for informal sensitivity screening.
How to use
Adjust settings
Use sliders and controls to set frequency, volume, and waveform. Changes apply in real time.
Export or share
Download a WAV file or copy a share link. All processing stays on your device.
Frequently asked questions
Do I need headphones?
Headphones make left/right isolation obvious.