Free online tool

Speaker Test

Test speaker output and stereo balance with short tones generated locally by your browser.

✓Runs locally in your browser — no account or uploads required.
Interactive browser testResults stay in this session

Playback alone cannot prove that a physical speaker produced sound.

Ready when you are.
Simple and safe

How to use the speaker test

  1. 1

    Lower your device volume to a comfortable level.

  2. 2

    Play the left, right, or stereo tone.

  3. 3

    Confirm whether each sound came from the expected channel.

Understand the result

Why speaker results need your confirmation

The browser can generate separate left, right, and stereo tones, but it cannot hear the physical output. TestMyDevice therefore records a result only after you confirm whether each sound was audible.

If a channel is silent, check system volume, browser-tab mute, the selected output device, cable orientation, Bluetooth routing, and left/right balance before assuming a speaker is faulty.

Practical fixes

Troubleshooting

No sound

Check system volume, browser tab mute, output selection, and cable or Bluetooth connections.

Channels are reversed

Inspect cable orientation and operating-system balance settings.

Audio is distorted

Lower output volume and disable audio enhancements before testing again.

Questions and answers

Speaker Test FAQ

Will sound play automatically?

No. Each sound requires an intentional button press.

Do I need an audio file?

No. The tone is generated locally with the Web Audio API.

Build a complete report

Test the rest of your device

Continue through all 13 core checks in one guided session and download a private PDF report.

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