Sound Test Online – Check Speakers & Headphones<br>SoundTestX<br>v1.0 · Runs locally in your browser

Check if your headphones or speakers are properly connected and working with this test. Tap the circle to play. Tap a side to switch ears.

LRTap<br>to play

Tap circle to stop

~440 Hz tone⌇Pink noise≋Brown noise♪Music<br>LR<br>Swap L / R<br>System default

Frequency Test<br>Sweep from 20 Hz to 20 kHz. Drag the slider, tap a band, then press play to hear that exact frequency.<br>440Hz<br>Sub-bass20–60Bass60–250Mid250 – 4 kTreble4 – 12 kUltra12 – 20 k

20 Hz200 Hz2 kHz20 kHz<br>MidrangeSpeech Range Most voices and instruments live here. The most critical band for clarity.

PlaySweep 12sIdle

Soundstage Test<br>An 880 Hz tone moves left-to-right around your head. Auto pan is hands-free; manual lets you place it.

LCenterR<br>Auto panManualIdle

All tools<br>Each tool has its own dedicated page with full controls. Pick one to dive in.

Frequency Test<br>20 Hz to 20 kHz, with a sweep.<br>Speaker Test<br>L/R, polarity, full sweep.<br>Mic Test<br>Record. Play back. Download.<br>Decibel Meter<br>Live SPL with peak history.<br>Webcam Test<br>HD preview, FPS, snapshot.<br>Pitch Detector<br>Note, frequency, cents.<br>Online Tone Generator<br>Sine, square, triangle, noise.<br>Bass Test<br>Find your low-end limit.<br>Audio Latency Test<br>Tap to the beat. We measure.<br>Touch Screen Test<br>Multi-touch, draw, grid.<br>Mouse Test<br>Buttons, wheel, polling, CPS.

Before you start<br>Four quick habits that make audio testing more accurate and easier on your ears.<br>01Start at 50%.<br>Comfortable middle. Turn up slowly.

02Use real headphones.<br>A quiet room helps too.

03Check both ears.<br>If one fades, swap the cable side.

04Take small breaks.<br>Fresh ears spot problems faster.

This sound test is the fastest way to check that your headphones, earbuds, or speakers are working — left, right, and stereo together — without installing anything. Tap the centre to play in both ears, the L badge for left only, the R badge for right only. If a side is silent or noticeably quieter, you've already found a problem.<br>What the sound test checks<br>Both channels output — left and right drivers actually produce sound.<br>Channel balance — one side dropping out points to a cable, jack, or worn driver.<br>Channel mix-up — the swap toggle catches L/R reversed in software or wiring.<br>Frequency response — the 20 Hz – 20 kHz slider exposes drop-outs and distortion.<br>How to use this sound test<br>Put on your headphones or position yourself between your speakers.<br>Set system volume to 30–50 % first — sweeps can get loud quickly.<br>Play both channels, then L only, then R only, listening for level differences.<br>Drag the frequency slider from low to high and listen for any drop-outs or rattle.<br>Frequently asked questions<br>Why is one side quieter than the other?<br>In order of likelihood: dirt or wax in the earbud, a partly unplugged jack, an off-centre system balance slider, a frayed cable, or a dying driver. Try the same headphones on a different device — if the imbalance follows them, the headphones are at fault.<br>Does the sound test work with Bluetooth headphones?<br>Yes. Pair them, set them as the system output, and run the test. Bluetooth adds about 100–250 ms of latency and slight compression, but neither affects a "does it work" check.<br>I can't hear above 14 kHz — is my gear broken?<br>Probably not. Hearing rolls off in the top octave with age, starting in your twenties. Most adults can't hear 18 kHz reliably even on new equipment.<br>Is anything recorded or uploaded?<br>No. The sound test runs entirely in your browser using the Web Audio API. Nothing leaves your device.