Test Your Stereo Sound — Check Left & Right Audio Channels

The Stereo Test plays a tone through your left channel, right channel, or both so you can confirm your audio setup is wired correctly. Put on your headphones or sit in front of your speakers, click Play Left, and listen — if the sound comes from the right ear, something's crossed.

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
Advertisements
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

Use the tone generator to play specific test frequencies through your speakers. Run a headphone test to verify both channels, or check low-frequency response with the bass test.

Advertisements
Advertisements
Test Settings
30%
Related Tools
Tip

For best results, use headphones to clearly distinguish between left and right channels without room acoustics affecting the test. You can also check your hearing range to ensure you can perceive all test frequencies.

Comments & Feedback