Quick answer: disconnect headphones and Bluetooth audio, begin at a low media volume, then play the left, center and right checks. Use the reference tones to notice silence, buzzes or abrupt differences. This is a listening comparison, not a hearing test or a hardware diagnosis.

Browser audio test

Test your phone speaker

Start at a low media volume. Each button plays a short sine tone generated in this browser.

Left, center and right

Use these to check stereo routing. Some phones, accessibility settings and browsers may mix both channels together.

Reference frequencies

Compare whether the speaker reproduces each tone cleanly. Different loudness between frequencies is normal and is not a hearing or hardware diagnosis.

Ready to test

Keep the phone away from your ears. Stop if a tone is uncomfortable, harsh or distorted.

How to test a phone speaker

Move the phone away from your ears and lower its media volume.
Disconnect wired headphones, Bluetooth earbuds, cars and external speakers.
Play left, center and right. Note whether audio comes from the phone and whether the channel changes are distinguishable.
Play each frequency once. Listen for missing sound, crackling or a large change that repeats at the same hardware volume and phone position.
Confirm any result with familiar speech or music before changing settings or seeking service.

What the results can mean

No sound from any button

Check media volume and the active audio route. Turn off Silent mode where it affects browser audio, disconnect external devices and retry. If other apps are also silent, use the manufacturer's sound troubleshooting steps.

Left and right sound the same

This can be normal on a phone with one effective output, when Mono Audio is enabled, or when the browser or operating system mixes channels. It does not by itself establish a broken speaker.

One tone buzzes or crackles

Repeat it once at a lower volume and compare with another audio source. A tone can expose distortion, but this page cannot separate debris, liquid, enclosure vibration, software processing or hardware damage. Use the crackling speaker guide for the next checks.

Sound changed after the phone got wet

Stop testing if the device is hot, shows a liquid warning or may be internally wet. Follow the wet-phone safety and drying sequence before deciding whether a water-eject sound is relevant.

Why this cannot diagnose a speaker

Your phone's model, case, orientation, audio processing and current volume all affect what you hear. Your room and hearing matter too. The browser cannot measure acoustic output without microphone access, and this page deliberately does not request it. Treat the controls as repeatable reference sounds rather than calibrated test equipment.

Phone speaker test