Phone speaker test - check left and right output

Play a test tone through each channel and check your phone's speakers for silence, crackle or distortion.

Which device are you checking?

Pick the device in front of you. The checks are tailored to it — a desktop is never marked down for having no battery.

Muffled after the phone got wet?

Try the Speaker Cleaner & Water Eject tool, then run this test again to compare. It may help move trapped water; it cannot repair a damaged speaker.

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What this test can honestly tell you

It plays a gentle tone panned to one channel at a time and asks what you heard. It does not claim to have verified which physical speaker produced the sound, and here is why that distinction is not pedantry:

Browsers hand audio to the operating system, and what happens next varies. Many phones mix both channels into a single speaker. A device with one speaker plays everything through it. Bluetooth headsets re-route the lot. So a phone with a completely dead right speaker can pass a naive "did any sound play" check perfectly — and plenty of online speaker tests report exactly that.

Only you can say which side you heard it from, so that is what gets recorded, and the report labels it as your confirmation rather than as a measurement.

Before you decide a speaker is broken

  • Check the volume and the silent switch.
  • Take the case off — a case that covers the speaker grille muffles it enough to sound like a fault.
  • Look at the grille. Pocket lint packed into it is the single most common cause of a quiet phone speaker, and it is fixable with a soft brush.
  • Disconnect Bluetooth. A phone quietly connected to a speaker in another room sounds broken.

Crackling and distortion

A speaker that plays but rattles or buzzes at volume usually has a damaged diaphragm, often from water. That is a real fault and worth recording.

Related tools

Sound test, headphone test, microphone test.

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Quick answer

Play the tone and answer what you heard. Before deciding a speaker is broken, check the volume, remove the case, clear lint from the grille and disconnect Bluetooth - those explain most quiet speakers.

Key facts

  • Browsers cannot verify speaker channel routing - many phones downmix to mono
  • Pocket lint in the grille is the most common cause of quiet output
  • Crackling at volume usually means a damaged diaphragm
  • Your answer is recorded as a confirmation, not a measurement