This speaker cleaner plays low sweeps and pulses that make your speaker cone move hard enough to shake water and loose dust off its mesh. It is the quick fix to try when your phone or laptop speaker suddenly sounds muffled, quiet or crackly after rain, a spill or a dusty pocket. The page also explains what sound cannot clean and how to clean a grille safely by hand, which is what really fixes most muffled speakers. The speaker cleaner sound works on iPhone, Samsung, Pixel and other Android phones, laptops and Bluetooth speakers, with nothing to install.
How to use the speaker cleaner
- Take off the case and wipe the phone dry.
- Turn the volume all the way up on a phone, or to about three quarters on a laptop or speaker.
- Hold the speaker grille facing down.
- Press Start. The default Low sweep glides between 120 and 330 Hz for one minute.
- Press Play a check sound at the end. If it is still muffled, try Pulse, then Wide sweep for dust.
- After two or three runs, stop and clean the grille by hand as shown below.
Which sound to use
| Sound | What it plays | Best for |
|---|---|---|
| 165 Hz tone | A steady 165 Hz tone, as the iPhone water eject shortcut uses | Water just after a splash |
| Low sweep | Glides from 120 to 330 Hz and back, 3 seconds each way | Muffled sound when you are not sure why |
| Pulse | 165 Hz in bursts of 0.4 seconds | Stubborn drops that a steady tone only wobbles |
| Wide sweep | Glides from 60 Hz to 2 kHz and back | Loose dust and grit on the mesh |
The readouts show the sound playing, its frequency at this moment, the time left in the run and how many runs you have done. Run the cleaner up to three times; after that, more sound will not help, and drying or brushing will.
Why a speaker sounds muffled
Causes from the most to the least common:
- Lint and dust in the grille. Pockets and bags pack fibres into the bottom speaker holes.
- Water. Droplets in the mesh dull the sound until they move or dry.
- Skin oil, makeup or earwax on the earpiece at the top of the phone.
- A case or screen protector that covers part of a speaker opening.
- The sound is going somewhere else. A connected Bluetooth speaker, earbuds or a car can take the audio while the phone speaker plays only some sounds.
- A sound setting. An equalizer, a "voice" mode or a volume limiter changes the sound.
- A damaged speaker, which buzzes or crackles even when clean and dry.
How to clean a phone speaker grille safely
- Turn the phone off and take off the case.
- Hold the phone with the grille facing down.
- Brush the grille gently with a dry, soft toothbrush or a soft paintbrush, across the holes, so loosened dust falls out instead of in.
- For packed lint, press a small piece of masking tape or reusable putty onto the grille and peel it off. Repeat with a fresh piece until it comes away clean.
- Wipe the outside with a soft, slightly damp, lint free cloth, keeping moisture away from the openings.
- Turn the phone on and run the Wide sweep to shake off anything the brush loosened.
Never push a pin, needle or toothpick into the speaker holes. The mesh tears easily and the speaker sits right behind it. Do not blow compressed air into the openings or soak the grille with cleaning liquids.
Cleaning the earpiece
The earpiece is the slot above the screen. Brush it in short strokes with a dry soft toothbrush, then use tape the same way as above. On phones with stereo speakers, the earpiece plays music too: if music sounds lopsided, the phone speaker test shows which end is weak. On phones with one speaker, the earpiece only plays in calls, so call your voicemail to hear it.
Fix my speakers on a laptop or computer
When laptop or desktop speakers sound muffled, settings are a more likely cause than dirt:
- Windows 11: open Settings, then System, then Sound, choose your speakers, and turn Audio enhancements off. Check that the right output is selected.
- Mac: open System Settings, then Sound, then Output. Pick the internal speakers and check the balance slider is centred.
- Dust in the grilles: brush laptop grilles with a soft dry brush while the laptop is off.
- A blown speaker: if one side buzzes at every volume, run the speaker test left right to confirm which one.
If no sound comes out at all, follow the guide for speakers not working instead.
When the speaker is damaged
Cleaning cannot fix a torn cone, a burnt coil or a cracked mesh. Signs of damage are buzzing or rattling on deep sounds at any volume, crackling that stays after the phone is dry and clean, and one speaker much quieter than the other on the same music. Phone speakers are cheap parts, but they sit deep inside, so take the phone to the maker or a trusted repair shop, especially if it is still under warranty.
What sound can and cannot clean
The speaker cleaner moves water and loose dust in the speaker grille. It cannot clean a microphone, dry the inside of the phone, dissolve dried sugar or salt, or reach a speaker that is not playing. Water in the charging port is a separate problem; see the water eject page for what Apple and Samsung advise after liquid gets in. To hear the result, play music you know well or use the sound test.
Speaker cleaner questions
Do speaker cleaner sounds actually work?
For water, yes: low tones make the speaker push droplets out of its mesh. For dust, only partly: sound can shake loose, dry dust off the mesh, but it cannot pull out lint packed into the grille. That needs a soft brush.
What is the best frequency to clean a speaker?
A low one the speaker can still play loudly, roughly 120 to 330 Hz on a phone, because low tones make the cone move furthest. Very high frequencies such as 10,000 or 20,000 Hz barely move the cone and do nothing for water or dust.
Can a speaker cleaner remove dust?
Loose, dry dust on the mesh, sometimes. Packed lint, earwax or makeup on the earpiece, no. Brush those out with a dry, soft brush, then run the Wide sweep to shake off what the brush loosened.
How do I fix my speakers if they sound muffled?
Take the case off, check that no Bluetooth device has taken the sound, clean the grille with a soft brush, then run this speaker cleaner. If it still sounds muffled, run the phone speaker test to see whether one speaker is weaker than the other.
Is it bad to play speaker cleaner sounds often?
A minute now and then does no harm. Playing loud tones for long periods every day wears a speaker like any loud use. Clean when the sound is muffled, not as a routine.
Why is only my earpiece muffled?
The earpiece grille sits against your face and collects skin oil, makeup and earwax. Brush it gently with a dry soft toothbrush. If your phone has stereo speakers, the earpiece also plays music, so the cleaner sound reaches it too.