How to use this tool
- Lower your system volume first.
- Click Left Speaker, Right Speaker, or Stereo.
- Confirm sound comes from the expected side.
Test your speakers online with left, right, and stereo tones. Works directly in your browser.
Play tones to check left, right, and stereo output.
Your device may be mono, audio enhancements may be enabled, or channels may be mixed by the OS.
No, it only helps diagnose output issues.