How to test your speaker
- Select the output you want to hear. Disconnect Bluetooth if you intend to use your phone or laptop speakers.
- Begin at a comfortable level. Choose Left and play the ten-second tone, then repeat with Right.
- Choose Both to hear the same signal on both channels. Use the voice sample to check ordinary speech.
- Compare with a familiar recording before deciding that a speaker is faulty.
What should I hear?
On a conventional stereo system, Left should play from the left speaker and Right from the right. Mono audio settings, accessibility options, speaker layouts and connected equipment can change the result.
A phone's stereo channels do not necessarily correspond directly to its receiver and bottom speaker. A browser cannot individually test every physical driver. One quiet grille is not enough to conclude there is a broken speaker.
What this test cannot measure
This tool plays sound; it does not listen. It cannot measure loudness, frequency response, distortion percentages or device health. A clear tone is only one listening check and does not establish that a phone is dry.
If one channel is missing
Check system balance, mono audio, connectors and the selected output. Try another recording or app. If both channels are present but sound is muffled, follow the muffled speaker guide.
For other test frequencies, open the tone generator. For moisture near the opening, review the water eject tool and its limits.