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<h2 id="how-to-test">How to test your speakers</h2><ol><li>Turn the volume down to about a third. Test tones are louder than music, especially in headphones.</li><li>Press <strong>Test my speakers</strong>. You hear three short beeps from the left, then from the right, then from both sides, and the matching side lights up on the screen.</li><li>Answer <strong>What did you hear?</strong>. The page tells you whether your speakers work and, if they do not, what to check on your device.</li><li>For a closer look, use the tests under <strong>More tests</strong>: single sides, a frequency sweep, a tone generator, noise, a phase test and the speaker cleaner.</li></ol><p>The test works the same with laptop speakers, desktop speakers, soundbars, TVs connected to a computer, Bluetooth speakers, headphones and earbuds. It plays through whatever device your phone or computer is using right now.</p><h2 id="phone">Testing a phone speaker</h2><p>Open this page on the phone and press <strong>Test my speakers</strong>. Phones play web pages, videos and voice messages through the <strong>media</strong> volume, so raise it with the side buttons while the sound is playing.</p><ul><li><strong>Two speakers or one?</strong> Most recent iPhones and many Android phones use the earpiece at the top as a second speaker, so left and right come from opposite ends of the phone (hold it sideways). Phones with a single bottom speaker play both sides from the same place, and that is normal.</li><li><strong>Nothing on iPhone?</strong> Silent mode can mute sounds from web pages. Turn it off with the Ring/Silent switch or the Action button, then test again.</li><li><strong>Muffled or quiet?</strong> Remove the case and screen protector, and brush dust out of the speaker holes with a dry, soft brush.</li></ul><p>Step-by-step help: <a href="/fix-iphone-speaker-problems">iPhone speaker not working</a>, <a href="/fix-android-speaker-problems">Android phone speaker not working</a>, <a href="/fix-ipad-speaker-problems">iPad speakers not working</a>.</p><h2 id="stereo">Left and right channels</h2><p>Stereo music and films send different sound to the left and the right. If the sides are swapped, voices and instruments appear on the wrong side and games give wrong directions. Use <strong>Left</strong>, <strong>Right</strong> and <strong>Alternate</strong> to check each side on its own.</p><ul><li>One side silent: check the balance setting on your device and the cable or Bluetooth connection of that speaker. Mono audio, an accessibility setting, makes both sides play the same sound.</li><li>Sides swapped: swap the speaker cables, or check that your headphones are not on backwards. L and R are printed on most earbuds and headbands.</li></ul><h2 id="sweep">Frequency sweep and bass test</h2><p>The <strong>full range</strong> sweep glides from 20 Hz to 20 kHz in 14 seconds and shows the frequency it is playing. Listen for three things:</p><ul><li><strong>Rattles and buzzing</strong> at particular frequencies. They point to a loose part, a torn speaker cone or something vibrating near the speaker.</li><li><strong>Where the bass starts.</strong> Phone and laptop speakers usually stay silent below about 150–300 Hz; small desktop speakers start around 70–100 Hz; a subwoofer goes down to 30 Hz or lower. Use the <strong>bass</strong> sweep (20–250 Hz) to hear this more slowly.</li><li><strong>Where it ends.</strong> Most adults stop hearing the sweep somewhere between 14 and 17 kHz. This depends on your ears, not only on the speakers.</li></ul><p>The <strong>tone generator</strong> plays one frequency for as long as you want, which helps to find the exact frequency of a rattle. Pink noise sounds even across the whole range and is good for comparing two speakers or setting levels; brown noise has more bass.</p><h2 id="cleaner">Speaker cleaner: water and dust</h2><p>The speaker cleaner plays a low 165 Hz tone in short pulses for 30 seconds. The strong movement of the speaker can help push out water droplets after rain or a splash, and loosen dust. Hold the phone with the speaker facing down, use a medium volume and stop if the sound distorts.</p><p>It does not repair a damaged speaker, and it is not a reason to get a phone wet. Do not put a wet phone in rice or near a heater; let it dry in the air with the speaker facing down. If the sound is still muffled after a day, the speaker may need a repair.</p><h2 id="no-sound">No sound? Quick fixes</h2><ul><li><strong>Volume and mute.</strong> Check the system volume, the mute key, the speakers' own volume knob and whether this browser tab is muted.</li><li><strong>Wrong output.</strong> Computers often switch sound to a monitor (HDMI), a headset or a Bluetooth device. Choose your speakers in the sound settings.</li><li><strong>Bluetooth.</strong> Earbuds in their case, a smartwatch or a car can keep the sound. Turn Bluetooth off for a moment and test again.</li></ul><p>Full guides: <a href="/fix-windows-speaker-problems">no sound on Windows</a>, <a href="/fix-mac-speaker-problems">no sound on Mac</a>. If only one app is silent, see the guides for <a href="/fix-whatsapp-speaker-problems">WhatsApp</a>, <a href="/fix-zoom-speaker-problems">Zoom</a>, <a href="/fix-teams-speaker-problems">Microsoft Teams</a>, <a href="/fix-discord-speaker-problems">Discord</a> or <a href="/fix-google-meet-speaker-problems">Google Meet</a>.</p><h2 id="quality">Crackling, buzzing or distorted sound</h2><ul><li>Distortion only at high volume is normal for small speakers. Lower the volume in the app or system before blaming the speaker.</li><li>A steady low hum from desktop speakers, even with no sound playing, usually comes from the power or audio cable (a ground loop), not from the speakers. Try another power socket or a different cable.</li><li>Crackling with Bluetooth comes from the connection: move closer, and keep the phone out of your back pocket.</li><li>Sound effects and enhancements (equalizers, Dolby, spatial sound) can make speakers sound worse. Turn them off to compare.</li></ul><h2 id="phase">Phase test for home speakers</h2><p>Each speaker has a plus and a minus terminal. If one speaker of a pair is connected the wrong way round, the two speakers push against each other: the sound loses bass and seems to come from nowhere. Play <strong>In phase</strong> and <strong>Out of phase</strong>. In phase should sound fuller and centred between the speakers. If out of phase sounds fuller, swap the two wires on one speaker.</p><h2 id="privacy">Privacy and safety</h2><p>All sounds are created in your browser with the Web Audio API. Nothing is recorded or uploaded, and the page never asks for your microphone. Keep the volume moderate: loud test tones, especially high frequencies in headphones, can damage hearing and small speakers.</p><h2 id="faq">Frequently asked questions</h2><h3>Why do I hear only one side on my phone?</h3><p>Many phones have only one loudspeaker, so left and right play from the same place. If your phone has two speakers and one side is silent, check the balance and mono audio settings, then clean the silent speaker.</p><h3>Why does my laptop have almost no bass?</h3><p>Laptop speakers are too small to move enough air for low notes. The bass sweep shows where they start. For more bass, use headphones or external speakers.</p><h3>Can I test headphones and earbuds?</h3><p>Yes. Connect them first so the sound goes to them, then run the same tests. Start at a low volume.</p><h3>Can I choose which speaker to test?</h3><p>In Chrome and Edge on a computer, an <strong>Output</strong> menu appears when the browser can list your audio devices. Otherwise the page plays through the device selected in your system settings.</p>

Free online speaker test: confirm left/right stereo, run a 20 Hz–20 kHz sweep, play pink/white/brown noise, and check phase for speakers, soundbars, or headphones. No recording.

Speaker Test & Sound Test – Left/Right, Bass, 20 Hz–20 kHz

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Check left/right channels, run a 20 Hz–20 kHz sweep, play pink/white/brown noise, and verify phase — all in your browser. No installs, no recordings.

Speaker test & sound test

Advanced tests

Will this work with Bluetooth/USB?

How loud should I set it?

Is it safe for my speakers?

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What does this test do?

Noise: White / Pink / Brown

Phase: In‑phase vs Out‑of‑phase

Stereo: Left / Right / Alternate

Frequency sweep

Tone generator

Visuals: Spectrum and Waveform

Glossary

Improving sound quality

Setup and positioning

System and levels

Overview

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Quick start

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Distortion at certain frequencies

I hear nothing

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Using the features

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<h2 id="how">How to run a sound test</h2>
<ol>
<li>Connect the speakers or headphones you want to check and set the volume to about 30–40%. Close other tabs that play audio.</li>
<li>Press <strong>Start full sound test</strong>. In about 35 seconds the test plays seven short sounds one after another: <strong>left</strong>, <strong>right</strong>, <strong>both</strong>, a rising <strong>bass</strong> tone, a steady <strong>voice-range</strong> tone, a rising <strong>treble</strong> tone and <strong>pink noise</strong>.</li>
<li>When it finishes, tick <strong>I heard it</strong> or <strong>Problem</strong> for each step and press <strong>Show my result</strong>. You get a short list of what is wrong and what to try.</li>
<li>Use the tools below the result to repeat a single test: one speaker at a time, the full 20 Hz–20 kHz sweep, a tone at any frequency, noise, phase, or the surround test for 5.1 / 7.1 systems.</li>
</ol>
<p>All sounds are generated in your browser. Nothing is uploaded and no microphone is used.</p>

<h2 id="steps">What each step checks</h2>
<ul>
<li><strong>Left, right, both:</strong> finds a dead or quiet channel, swapped left and right, and mono audio. If both sides are heard alone but the "both" beeps seem to come from one place, check for a mono or spatial-audio setting.</li>
<li><strong>Bass (20–250 Hz):</strong> shows how low your speakers can go. Laptop and phone speakers usually start around 100–150 Hz; bookshelf speakers 40–60 Hz; a good subwoofer 25 Hz or lower.</li>
<li><strong>Voice range (1 kHz):</strong> a steady tone in the range where speech lives. Crackle or buzz here points to a damaged cone, a loose cable or too much volume.</li>
<li><strong>Treble (2–16 kHz):</strong> the tone should rise smoothly. It is normal for it to fade near the top; most adults cannot hear above 15–17 kHz and cheap speakers roll off earlier.</li>
<li><strong>Pink noise:</strong> an even hiss. Rattles, one side sounding duller, or a vibrating case show up here.</li>
</ul>

<h2 id="fix">No sound or a problem? Quick fixes</h2>
<ul>
<li><strong>Nothing plays at all:</strong> raise the volume, check the right output device is selected (Windows: Settings › System › Sound; Mac: System Settings › Sound › Output), and make sure the browser tab is not muted. On iPhone turn Silent mode off.</li>
<li><strong>Only one side plays:</strong> check the balance slider and Mono audio in system settings, reseat the cable or earbud, then test with another device to see whether the speaker or the source is at fault.</li>
<li><strong>Bluetooth speakers or headphones:</strong> confirm they are the selected output and not a device that is still connected somewhere else. Delay or stutter usually means distance or interference.</li>
<li><strong>Crackling or distortion:</strong> lower the volume and any bass boost or audio enhancements, try another cable or port, and update the audio driver.</li>
<li><strong>Weak bass:</strong> check speaker polarity (+/−), move speakers away from corners or closer to a wall, and for a subwoofer check its level knob and cable.</li>
</ul>

<h2 id="faq">Frequently asked questions</h2>
<h3>How do I test my speakers on my computer?</h3>
<p>Open this page, press the start button and listen. The test plays through your computer's normal output, so you hear what any other app would play. Choose another output device in the tool below to test a second speaker or a headset.</p>
<h3>Is this a hearing test?</h3>
<p>No. It checks your speakers and headphones, not your ears. If you think your hearing has changed, see a qualified professional.</p>
<h3>How do I test left and right speakers?</h3>
<p>Steps 1 and 2 play only the left and then only the right channel. The one-speaker buttons below repeat each side as often as you like.</p>
<h3>Why can't I hear the highest tones?</h3>
<p>Few adults hear above 16 kHz, and many speakers cannot play it. A fade near the top of the treble sweep is normal.</p>
<h3>Does it work on a phone?</h3>
<p>Yes, on iPhone, iPad and Android. Turn off Silent mode on iPhone and raise the media volume.</p>
<p>More tests: <a href="/">speaker test</a>, <a href="/headphone-test">headphone test</a>, <a href="/bass-test">bass test</a>, <a href="/surround-sound-test">surround sound test</a> and the <a href="/tone-generator">tone generator</a>.</p>


Sound Test: Free Online Speaker & Audio Test (Left, Right, Bass)

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Speaker Test

Free online sound test: one click plays left, right, both, bass, voice range, treble and noise, then tells you what is wrong. Test speakers or headphones on any computer or phone. No download.

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Sound test

Guided audio test for speakers and headphones: left, right, bass and treble in 35 seconds

How to run a sound test

What each step checks

No sound or a problem? Quick fixes

Frequently asked questions

How do I test my speakers on my computer?

Is this a hearing test?

How do I test left and right speakers?

Why can't I hear the highest tones?

Does it work on a phone?