An audio check compares the sound you expect with the sound your device plays or captures. Start with left/right output, check your microphone separately, then investigate balance, distortion, or delay. Choose a focused test below; all diagnostic audio is processed locally in your browser.
Connect the speakers or headphones you intend to use. Select that output in your system settings and turn the volume down before playing a signal.
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Separate output from input
Check speaker playback first. For microphone problems, enable the microphone test and record a short voice sample; a working speaker does not prove the mic works.
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Compare one change at a time
Repeat the same test after changing a cable, balance setting, app, or device. Keep the volume consistent so your comparison stays useful.
Which audio check should you use?
For silence or a reversed channel, begin with the left/right sound test. For a headset that sounds uneven, use the headphone balance control. Microphone testing answers a different question: whether the browser is receiving your voice and whether a short recording sounds clear. Surround checks are intended for multichannel hardware, while frequency sweeps help you notice changes across a device’s range.
The homepage remains the quick sound-test station. The Sound Tester brings tones, headphones, and microphone diagnostics together in one workbench. These focused guides explain individual problems in more detail, so you can choose a short check instead of running every possible test.
What a browser can tell you
The tools generate known digital signals and give you controls for comparison. A visual spectrum shows the generated signal, not a measurement of the room or the sound leaving a speaker. Your ears, microphone placement, playback hardware, and operating-system settings still affect the result. A smooth animation alone does not prove a physical speaker is playing.
A useful result is specific: left and right match their labels, a voice clip is intelligible, or a buzz disappears when another output is selected. Avoid turning these observations into an unsupported quality score. This site does not grade hearing or certify speakers, microphones, or workplace noise levels.
Finish the check where the problem happens
If a browser test works but a meeting app is silent, repeat the check inside that app. Applications can select different devices and apply their own processing. For a record player, inspect the analog playback chain separately: a computer-generated tone does not pass through the stylus or record groove.
No account or audio upload is needed. Microphone access is optional and requested only when you enable it. Short voice recordings remain in the tab’s memory; the privacy policy explains ordinary website requests and contact email separately.
What your result may mean
A listening clue is a starting point, not a diagnosis.
Common observations and practical next checks
What you notice
Possible explanation
Next check
No playback anywhere
Output selection, mute, connection, or device power may be wrong.
Run the computer sound checklist before changing drivers.
Playback works, voice is silent
The input path is separate from the speakers.
Check microphone permission and input selection.
Only calls sound wrong
The meeting app may use different devices or processing.
Repeat the test inside Zoom or Teams.
Sources & technical references
The tool behavior described here reflects this website’s implementation. These primary references explain relevant browser capabilities or equipment and application settings.
Choose your output device, lower the volume, and play the left and right speaker signals. Then check headphone balance or enable the microphone if needed. Compare one setting at a time. The tests run in your browser without installation; microphone access is optional and requires permission.
What is the difference between an audio check and a microphone test?+
An audio check can cover both playback and recording. A microphone test specifically checks the input your browser receives. If a speaker test works, the microphone can still be muted, blocked, or incorrectly selected. Test the two paths separately to identify which part needs attention.
Does this audio check work on a phone?+
The tools work in supported mobile browsers, but available output channels and microphone controls vary by device. A phone’s built-in speakers may not provide distinct left and right playback. Use headphones for channel comparison, and keep the browser tab open while running a test.
Can this website automatically fix my audio?+
No. It provides test signals, local microphone feedback, and troubleshooting guidance. It cannot repair a driver, move a cable, clear water reliably, or change another application’s settings. Use the results to narrow the problem, then make the appropriate adjustment on your device or in the affected app.