Speaker Cleaner › Speaker Test
Free · no app · left/rightPhone speaker test: left, right and full range
This speaker test plays a steady 1 kHz tone or a 10-second sweep from 100 Hz to 10 kHz on the left, right or both speakers. A healthy speaker plays both smoothly; crackling, buzzing or sudden silence at some frequencies points to water, dust or damage.
- Tests stereo phones
- No microphone
- Free
Start at medium volume. Left and Right only differ on phones with stereo speakers (earpiece + bottom speaker).
Ready. Choose a channel and play a test.
A phone speaker test plays known tones so faults become audible. A steady 1 kHz tone checks volume and clarity, while a sweep from 100 Hz to 10 kHz reveals the frequencies where a speaker buzzes, rattles or drops out. Distortion only at low frequencies usually means water or debris, not a failed speaker.
How to read the results
| What you hear | What it means | Next step |
|---|---|---|
| Clear tone and smooth sweep | Speaker is healthy | Done |
| Muffled or quiet throughout | Water or dust in the grille | Speaker Cleaner |
| Buzz or rattle at low frequencies | Water on the diaphragm or loose debris | Run Water mode, then retest |
| Crackle that stays after drying | Possible diaphragm damage | crackling after water |
| Nothing on one side only | Single-speaker phone, or one speaker faulty | Check your phone's speaker layout |
Tips for an accurate test
- Medium volume firstStart at about half volume, then go up.
- Bluetooth offMake sure sound comes from the phone.
- Quiet roomBackground noise hides faint distortion.
- Compare channelsPlay Left then Right and listen for a difference.
A phone speaker test plays known tones so you can hear faults. A steady 1 kHz tone checks volume and clarity, and a sweep from 100 Hz to 10 kHz reveals frequencies where the speaker buzzes, crackles or drops out. Distortion only at low frequencies often means water on the speaker diaphragm.
Phones with stereo sound use the bottom speaker and the earpiece as the two channels, so a left or right test isolates one of them. Budget phones with a single speaker play both channels from the same driver, and no difference between left and right is expected on those models.
Left and right on phones
Phones with stereo sound use the bottom speaker and the earpiece as the two channels. Which one is "left" depends on how you hold the phone. Budget phones with a single speaker play both channels from the same place. If the test finds a problem, read fix a muffled speaker.