Sound Test & Speaker Test
Run a free sound test to check if your speakers work the way they should. Play sound on the left channel, the right channel or both, run a frequency sweep from 20 Hz to 20 kHz, or play a low, mid or high tone. It works for phone speakers, laptops, headphones and desktop speakers, right in your browser.
How to Run a Left and Right Speaker Test
A left right speaker test tells you if both channels play and if they are in the right place. It takes less than a minute.
Set a safe volume
Put the volume around the middle. You can raise it after the first beep.
Headphones: go lowTest the left side
Tap Left. The beeps should come only from the left speaker or the left ear cup.
4 secondsTest the right side
Tap Right. Now the beeps should move to the right side only.
4 secondsRun the sweep
Play the sweep and listen for buzzing, rattling or a part where the sound drops out.
15 secondsPhone Speaker Test
A phone speaker test helps you find out if your speaker is clean and healthy, or if it needs cleaning or repair. Use the tones in the tool and listen for these signs. For more checks, read how to test if your iPhone speaker is damaged.
Start the testTwo speakers on most phones
Many modern phones play media from the bottom speaker and the earpiece together. Tap Left and Right with the phone turned sideways to hear each one.
Hold the phone sidewaysLow tone: listen for rattle
The 100 Hz tone moves the speaker the most. A buzz or rattle here often means dust, water or a loose part.
Low · 100 HzMid tone: listen for clarity
The 1 kHz tone is in the range of voices. If it sounds muffled or thin, the grille may be blocked.
Mid · 1 kHzHigh tone: listen for hiss
The 10 kHz tone should sound clean and sharp. Crackling or hissing points to a worn or damaged speaker.
High · 10 kHzOnline Audio Test
An online audio test plays a known sound, so you can hear exactly what each part of your speaker does. Here is what each tone checks.
Low tone checks bass and rattle
The 100 Hz tone checks the bass. A clean, steady hum means the speaker cone moves freely. A buzz or rattle points to dust, water or a loose part.
Low · 100 HzMid tone checks voices and clarity
The 1 kHz tone sits in the range of voices, calls and most music. It should sound full and clear, not thin or muffled.
Mid · 1 kHzHigh tone checks treble and hiss
The 10 kHz tone checks the treble. It should sound sharp and clean, without hiss, crackle or distortion.
High · 10 kHzSweep checks the full range
The sweep glides from 20 Hz to 20 kHz in one pass. Listen for gaps, sudden drops in volume or buzzing at any point along the way.
Sweep · 20 Hz to 20 kHzStereo Test for Headphones and Laptops
A stereo test is the quickest way to spot a dead ear cup, swapped channels or a laptop speaker that has stopped working. Here is what to look for on each.
Headphones
wired and BluetoothLaptops
built in speakersLaptop speakers still quiet? See our guide to laptop speakers not working.
What Your Test Results Mean
Use your test results to decide what to do next. Most problems are small and easy to fix.
Both sides play clearly
- Left and Right play on the correct side
- The sweep sounds smooth without buzzing
- Low, mid and high tones are all clear
- Nothing to fix, your speakers are fine
Muffled, quiet or rattling
- The low tone buzzes or rattles
- Voices sound muffled on the mid tone
- One phone speaker is quieter than the other
- Run Fix My Speaker or Water Eject, then test again
Silent or distorted
- One side gives no sound at all
- Sound crackles even at low volume
- The problem stays after cleaning and a restart
- Contact the maker or a trusted repair shop
FAQs
Quick answers about speaker tests and stereo checks.
A rattle on the low tone is often dust or water. Clean the speaker, then run the test again.
Go to the toolSet a medium volume, tap Left and listen for beeps on the left side only, then tap Right. Each side should play on its own. Tap Both to hear them together.
Most adults stop hearing sounds somewhere between 14 and 17 kHz, and small phone speakers also get quiet at the very top and bottom of the range. Not hearing the last part of the sweep is normal.
Yes. Open the page in Safari, Chrome or any modern browser, turn off silent mode and raise the volume. Turn the phone sideways to hear the left and right speakers more clearly.
If the sound is muffled or rattles, clean the speaker with our Fix My Speaker or Water Eject tool and test again. If one side is silent or crackles after cleaning, the speaker may need repair.
Open this page, set a medium volume and tap Left, then Right, to hear each side on its own. Then play the low, mid and high tones and run the frequency sweep. Clear sound on every tone means your speakers are working.
The easiest way is an online sound test like this one. You need no app or download. Tap Both and listen for a clean beep, then check Left and Right. It takes under a minute on any phone, laptop or pair of headphones.
Open this page in Safari or Chrome, turn off silent mode and raise the volume. Tap Left, Right and Both, play the low, mid and high tones, then run the sweep. Turn the phone sideways to hear each speaker more clearly.
Other Tools
Every tool runs in your browser on iPhone, Android and desktop. No app, no sign up.
Check both speakers in under a minute.
Play Left, Right and Both, then run the 20 Hz to 20 kHz sweep. Free and in your browser.