Test Your Stereo Sound — Check Left & Right Audio Channels

Click Left or Right to test your stereo audio channels and verify that sound plays from the correct speaker or headphone ear. Check channel balance, detect reversed wiring, and confirm proper left/right separation across your speakers, headphones, and audio interfaces.

Click on a channel below or use the test buttons to check your stereo audio.
Channel Test

LEFT

Click to test

RIGHT

Click to test

Balance Test

Adjust the balance slider while audio is playing to test channel separation and balance.

Left Center Right
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Automatic Test Sequence

Run an automatic sequence that cycles through all stereo tests.

Step 1: Left channel only (2 seconds)
Step 2: Right channel only (2 seconds)
Step 3: Alternating left/right (4 seconds)
Step 4: Both channels (2 seconds)
Stereo Issues?
Common Problems
  • One channel not working
  • Channels reversed (left/right swapped)
  • Uneven volume between channels
  • Mono audio instead of stereo
Solutions
  • Check cable connections
  • Verify audio output settings
  • Update audio drivers
  • Check system balance settings

For more help, see our troubleshooting guide or test your headphones separately.

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Test Settings
30%
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Tip

For best results, use headphones to clearly distinguish between left and right channels without room acoustics affecting the test.