Confirm Both Speakers Play
Test left, right and centre separately. Check that each signal comes from the expected side of your setup.
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AUDIO DIAGNOSTICS / GAMEPAD TESTER
Sound Test Online
Check your speakers, headphones and stereo sound in one browser-based audio studio. Test left and right channels, balance, playback clarity, bass and treble using locally generated audio signals.
Open Sound Testing Studio ↗♪
Start with a comfortable, low volume.
Lower your device volume before pressing Play. Audio begins only after you click a test, and each test is time-limited. Stop immediately if any sound is uncomfortable. Browser volume is not a calibrated sound-pressure measurement.
01 / LIVE AUDIO WORKBENCH
● Ready — audio paused
Test Your Sound Output
Play a short test tone through the left, centre or right stereo channel. Watch the generated digital signal while listening to your actual equipment.
LIVE SIGNAL MONITOR
NOT PLAYING
Stereo Channel Test
440 Hz · Short signalsThe visualizer represents the digital audio produced by this page, not sound captured from your room. No microphone permission is requested. Browser audio cannot automatically confirm that a physical speaker is functioning.
02 / HEADSET & EARPHONE CHECKS
Headphone Test
Verify left and right earcups, stereo placement and consistency using short, clearly labelled sounds.
01
Left / Right Ear Test
Put on your headphones at low volume. The left tone should be heard on the left, and the right tone on the right.
02
Stereo Imaging Test
Listen as a tone travels from the left ear to the right. It should move smoothly through the centre if stereo output is operating as expected.
03
Headphone Clarity Check
Compare a few gentle midrange tones and an original chime. Listen for dropouts, buzzing or a channel becoming noticeably quieter.
03 / DESKTOP AUDIO CHECKS
Speaker Test
Test computer speakers, laptop speakers, Bluetooth speakers and stereo speaker pairs without installing an app.
Compare Midrange and Bass
Try moderate-frequency reference tones and a brief low-frequency sweep. Smaller speakers may reproduce very little low bass, and that alone is not a defect.
Compare Speaker Phase
Switch between matching and inverted stereo signals at low volume. Differences can suggest placement or wiring issues, but this is not a definitive polarity diagnosis.
LISTENING TIP
Place your speakers correctly
For a stereo test, keep the speakers at similar distances and make sure the left speaker is physically on your left.
If you hear the wrong side, check operating-system balance, cable connections and any mono-audio setting.
04 / ADVANCED AUDIO TESTS
More Sound Testing Tools
Go beyond a basic speaker check with controlled test tones, sweeps, noise and stereo signal comparisons.
01 / FREQUENCY
Online Tone Generator
Generate a short test tone at a selected frequency. This is not a medical hearing test.
440 Hz
Presets:
02 / FREQUENCY RANGE
Frequency Sweep Test
Hear a smooth change in pitch for checking audible dropouts or rattles at comfortable volume.
03 / TEXTURE & NOISE
Noise Generator
Compare three short, quiet noise signals for balance and obvious speaker coloration.
04 / CHANNEL BALANCE
Stereo Balance Control
Adjust a reference tone's position across the stereo field. The pan control changes the digital signal, not your device's system balance setting.
LEFTCentre · 0RIGHT
05 / SETUP GUIDE
How to Test Headphones and Earbuds Correctly
Start with the correct audio device selected, and reduce the volume before checking each ear. An online test can help you compare left and right output without opening a separate application.
- Connect and select your headphones in your device's audio settings.
- Use the Left and Right buttons to confirm channel separation.
- Try the Stereo Pan Sweep and original chime.
- Compare results with another device if one side seems missing or quieter.
Noise cancellation, mono-audio settings and unequal earbud fit can change what you hear.
IMAGE SECTION 01Headphone Left & Right TestAdd your image URL in data-image-url
L ◖ ◗ R
06 / SPEAKER SETUP GUIDE
How to Check Computer Speakers and Stereo Balance
Speaker placement and connections matter as much as the test sound. Use short reference tones to identify missing channels before examining subtle sound differences.
- Connect both speakers and select the correct audio output.
- Play Left, Both and Right while sitting in your normal listening position.
- Try a gentle midrange tone and listen for buzzing or interruption.
- Repeat with a different cable, output or browser if a problem continues.
Browser tests cannot measure true acoustic frequency response or calibrated loudness without specialized measurement equipment.
IMAGE SECTION 02Desktop Speaker TestAdd your image URL in data-image-url
◉ ~ ◉
07 / MANUAL AUDIO ASSESSMENT
0 / 6 reviewedSound Test Results and Report
Mark what you actually heard. The browser cannot automatically tell whether your physical headphones or speakers are defective.
Your assessments and playback history stay in this tab unless you export them.
08 / AUDIO TESTING EXPLAINED
What Can a Browser Sound Test Tell You?
Left and Right Sound
Stereo channels carry distinct signals. If a left-only tone comes through both sides, check whether mono audio, software enhancements or wiring changes the output.
Headphone Driver Problems
Dropouts, rattling or uneven sound may suggest hardware or connection issues. Test another source and check fit, wireless charge and audio settings before concluding a driver is damaged.
Frequency Response
A sweep lets you hear changes across a frequency range. Your ears, room, speaker design and playback level affect perception, so this does not produce an objective frequency-response graph.
Speaker Phase and Polarity
Reversing one stereo channel changes how a signal combines acoustically. A perceptual phase comparison can help with troubleshooting but cannot reliably certify speaker wiring from a browser alone.
Digital Spectrum Display
The live chart shows the outgoing audio graph inside the webpage. It does not measure ambient sound or prove how loud the speakers are in decibels.
Browser and Hardware Limitations
Web Audio generally supports generated stereo signals, but physical routing, Bluetooth behavior, system-level enhancements, output-device choice and hardware faults remain outside direct webpage control.
09 / SOUND TROUBLESHOOTING
No Sound or Only One Speaker Working?
No Audio from Either Side
Confirm the device is connected, unmuted and selected in your system sound settings. Check the browser tab's audio setting, then start a short test using a low but audible volume.
Left and Right Are Swapped
Check speaker placement, headphone connection and any channel-mapping or spatial-audio features. Test the same device in another application.
Bluetooth Sound Is Missing
Check that your headphones or speaker are paired as an audio output rather than a different device profile. Reconnect if necessary and test again.
Crackling or Distorted Sound
Try lower playback volume and a simple sine tone. Check cables, drivers, wireless interference and whether the distortion occurs across multiple apps.
10 / FREQUENTLY ASKED QUESTIONS
Sound Test FAQs
How can I test my speakers online?
Start with your device volume low. Press Left, Both and Right in the live audio console, listen for each channel, and then use the tone or sweep tools if necessary.
How do I test the left and right sides of my headphones?
Use the Left and Right buttons under the Headphone Test. Each signal is generated for the corresponding stereo channel. A mono output or system audio setting can make the sounds appear in both ears.
Does this test work with Bluetooth earbuds and wireless speakers?
Yes, if they are selected as your system output and the browser can play audio to them. The tool cannot identify all Bluetooth settings or connection problems.
Can I run a frequency sweep and bass test?
Yes. The page offers limited-duration gentle sweeps for general, bass and upper-frequency listening. Results are subjective and should not be used as a medical hearing assessment.
Can the sound tester measure decibels or headphone loudness?
No. It controls the digital signal level, but it cannot measure sound pressure at your ears or in the room without appropriate calibrated equipment.
Why can I hear only one channel?
The selected speaker or headphone driver may not be active. Check audio balance, mono settings, cables, Bluetooth pairing and the selected playback output.
Can I choose another sound output device?
Some browsers support an output selection prompt and routing for Web Audio. If those browser APIs are unavailable, use the operating system's sound settings before running the test again.
Do you need microphone permission?
No. The sounds are generated locally through the browser's audio output, and no microphone signal is captured.
Will this test tell me if my headphones are damaged?
It can help you observe missing or unusual playback, but it cannot independently diagnose physical hardware defects. Compare with another device and source when needed.
Is it safe to use on mobile devices?
The interface is responsive, and short browser-generated signals can run on most current mobile browsers. Keep playback comfortable, especially with earbuds, and stop immediately if a sound is unpleasant.
11 / MORE TESTING TOOLS
Check More of Your Setup
Sound Test by Gamepad Tester · Locally generated audio · No microphone or account required