Audio tester

Play a short left, right or stereo signal with a visible Stop control.

Privacy: runs in your browser

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English

Signal volume

Tone (Hz)

Each tone lasts two seconds. Start with your device volume low.

Your result

Start with the volume low

Left and right send the tone to the selected audio channel. Stereo sends it to both. The volume control changes the generated signal, not your operating-system volume.

Next: Dead pixel test

Worked example

Left sends a signal only to the left channel; the right channel contains silence. Each tone stops automatically as well as when you press Stop.

Before you rely on the result

Mono settings, Bluetooth profiles, cables and output selection can combine or swap channels. The page generates a signal; you decide what you hear. No microphone access is requested.

Cite this page

Citation style

ToolOctopus. “Audio tester.” Updated 2026-10-11. https://tooloctopus.com/speaker-test.

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