Free speaker test · no install
Is your speaker actually working? Let's find out.
Play a tone through the left channel, the right channel, and a full frequency sweep — right in your browser. Works on phone, laptop, PC, or headphone speakers.
- L/R channel isolation test
- 20 Hz–20 kHz full-range sweep
- 0 downloads required
Tap a test to begin. Headphones give the clearest left/right result.
Quick answer
To test your speakers, turn the volume to a comfortable level and tap Left, then Right, then Both. Each tone should come only from that side. Then run the 20-second Full Sweep from 20 Hz to 20 kHz: the first few seconds test bass, the middle tests voices, the end tests treble. Buzzing, rattling or a section that goes silent means a blocked or damaged speaker. This online speaker test works on phones, laptops, PCs and headphones — no app needed.
| Test | What you should hear | What a problem sounds like |
|---|---|---|
| Left | 440 Hz tone from the left side only | Silence, or sound from the right |
| Right | Tone from the right side only | Silence, or sound from the left |
| Both | Tone centered between speakers | Leaning heavily to one side |
| Full Sweep | Smooth rise from deep hum to high whistle | Buzzing, rattling, dropouts |
How to run a proper speaker test
Four checks tell you almost everything: whether each channel works, whether the full frequency range plays cleanly, and where exactly a problem sits if there is one.
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1
Turn up your volume
Headphones give the clearest left/right result, but built-in speakers work fine too.
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2
Test each channel
Tap Left, then Right. You should hear the tone clearly on that side only, nowhere else.
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3
Run the full sweep
20 Hz to 20 kHz over 20 seconds. Listen for buzzing, rattling, or spots where it cuts out.
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4
Match what you heard to the fix
A silent channel, a rattle at one pitch, and general quietness all point to different problems.
Why test channels separately
A phone, laptop, or pair of headphones can have one working driver and one failed one — media that's mixed mostly center will still sound "fine" until you isolate each side. A half-inserted headphone jack, a Bluetooth device stuck in mono, or an accidentally shifted OS balance setting all produce the same symptom: audio that seems to work but is quietly missing a channel.
What a frequency sweep tells you
Different problems show up at different points in the sweep. A rattle that appears only in a narrow band usually means a loose part or foreign object resonating at that specific frequency. A range that goes quiet or drops out points to a partially blocked or damaged driver — worth running the speaker cleaner if water or dust is a plausible cause, or checking the fix my speaker guide otherwise.
How to read the frequency sweep
The sweep rises exponentially from 20 Hz to 20 kHz over 20 seconds, so each part of the range gets its own slice of time. Note when a problem appears and match it here.
| Seconds | Frequency | What it tests | If you hear a problem |
|---|---|---|---|
| 0–4 | 20–80 Hz | Deep bass (phones and laptops barely reproduce this) | Silence here is normal on small speakers |
| 4–7 | 80–200 Hz | Bass test — where water in a phone speaker rattles | Buzz or fizz: water in the grille → Water Ejector |
| 7–13 | 200 Hz–2 kHz | Voices and most music | Rattle: loose part or debris; dropout: damaged driver |
| 13–17 | 2–8 kHz | Clarity, speech detail | Dull or missing: dust in the grille → Dust Buster |
| 17–20 | 8–20 kHz | Treble and "air" | Fading out near the end is normal (hearing and speaker limits) |
Hearing high frequencies naturally declines with age, and small speakers roll off at both ends, so judge the sweep by buzzing, rattling or sudden gaps rather than by where it starts or stops.
Speaker test for mobile, laptop, PC and headphones
| Device | How to test | Good to know |
|---|---|---|
| iPhone | Hold the phone sideways; bottom speaker and earpiece form left/right | If one side is weak, clean the earpiece or bottom speaker |
| Android phone | Same as iPhone on stereo models; mono phones play every test from one speaker | Mono is normal on many budget phones |
| Laptop / MacBook | Sit centered in front of the screen | Muffled? See the laptop speaker cleaner |
| PC speakers | Check each speaker box lights up the right side | Swapped sides = cables reversed |
| Headphones / earbuds | Clearest left/right result — each ear is isolated | One side quiet? Check the balance setting and earwax |
| Bluetooth speaker | Pair, then run the tests | Single-box speakers often play in mono |
Speaker water test: is there still water inside?
After a spill, run the sweep and listen to seconds 4–13. Water sitting in a phone speaker's mesh makes that range sound fizzy, bubbly or buzzy, and voices sound "underwater." If you hear that, run the Water Ejector speaker-down and test again. When the sweep sounds smooth and matches how the phone sounded before, the grille is clear. For a wet phone, also follow what to do in the first 10 minutes.
Microphone and speaker test
This page tests output. To test input, use the Mic Test on the mic cleaner page: it records three seconds and plays them back in your browser, so you can check both halves of a call — what you hear and what others hear — in under a minute.
What your speaker test result means
| Result | Meaning | Next step |
|---|---|---|
| Everything clear on both sides | Speakers are healthy | If audio still seems quiet, check volume settings |
| One side silent | Balance setting, mono mode, or a failed driver | Check balance/mono settings; if fine, repair |
| Fizz or buzz in the bass after water | Water in the grille | Water Ejector, 1–3 cycles |
| Dull, missing treble | Dust or lint | Dust Buster + gentle brushing |
| Rattle at one pitch only | Loose part or trapped debris | Clean, then check the case and screws |
| Crackle at every frequency and volume | Damaged speaker | Crackling guide, then repair |
Speaker test questions
How do I test if my speakers work?
Turn volume up to a comfortable level and tap Left Channel, then Right Channel, then Both. You should hear a clear, steady tone on the correct side each time. Then run Full Sweep to check the entire range for buzzing, rattling, or dead spots.
How do I test left and right audio channels?
Use the Left Channel and Right Channel buttons above — each plays a tone panned entirely to that side. With headphones this is unambiguous; with speakers, listen for which physical driver is producing sound.
Can I test my laptop or PC speakers with this?
Yes. This works with any audio output your browser can reach — phone, laptop, desktop, headphones, or Bluetooth audio. It doesn't matter what device you're testing.
I don't hear anything on one side, what does that mean?
First check the basics: a half-inserted headphone jack, a Bluetooth device connected in mono, or an OS balance setting shifted to one side. If those check out and one channel is genuinely silent, that driver has failed and needs a repair.
Is this different from the speaker cleaner tool?
Yes. This page diagnoses whether your speakers work correctly. If the test reveals a muffled or quiet speaker rather than a dead one, the water and dust removal cycle is the next step, not this test.
Does this work with headphones and earbuds too?
Yes — headphones and earbuds actually give the clearest result for the left/right test, since each ear is fully isolated from the other.
How do I check if my speaker is working or not?
Tap Left, Right and Both on this page, then run the Full Sweep. If you hear clean tones on the correct sides and a smooth sweep without buzzing or gaps, your speaker is working.
Is there a speaker bass test?
Yes — the first seven seconds of the Full Sweep cover 20–200 Hz, the bass range. Small phone and laptop speakers barely play the lowest part, so listen for rattles rather than volume.
What is a speaker water test?
It's a check for water still trapped in a speaker. Run the sweep after a spill: fizzing or buzzing in the low-mid range means water is still in the grille, so run the Water Ejector and test again.
Why do I hear the same sound on both sides?
Your device may be mono — many phones and single Bluetooth speakers have only one speaker — or Mono Audio may be switched on in accessibility settings.
Speaker sounds muffled, not silent?
That's a cleaning problem, not a broken driver — the main tool can help.
Go to the speaker cleaner →