Speaker test.
Play a sound through your left speaker, right speaker, or both. Check channel routing and compare the sound before a call, game, or listening session.
Start low. Your system volume also affects loudness.
Ready. No sound plays until you choose a test.
Uses your system’s current audio output. No microphone permission needed.
How to run a left and right speaker test
Select Left speaker. In a normal stereo configuration, the sound should come from the speaker on your left. Select Right speaker and compare. Run stereo check to play left, right, then both automatically. If the positions are reversed, check the physical connections and your device’s output settings.
What should both speakers sound like?
The same tone is sent to both stereo channels. From a centered listening position, the combined sound should feel approximately balanced. Your room, speaker distance, speaker settings, and hearing can affect the result. This check does not measure sound pressure or certify matched speaker output.
Using the test tone
Choose a frequency between 80 Hz and 8 kHz and select Play tone. Each tone lasts two seconds and starts and ends with a short fade to reduce clicks. Low tones may be hard to hear on a laptop or phone speaker; do not compensate by rapidly increasing the volume. A missing or rattling tone is a clue to investigate, not a diagnosis of a damaged driver.
If neither speaker plays
Check system volume, the website’s test-volume slider, browser-tab mute, your amplifier input, and the currently selected output. Bluetooth headsets and HDMI displays can silently become the default output. Try a familiar recording in another app to separate a browser issue from a system issue. Read the no-sound checklist.
Good questions.
Clear answers.
Do I need to allow the microphone for the speaker test?
No. This test only creates output sounds and never asks for microphone access.
Why does the left test play in both speakers?
Check whether mono audio or an audio enhancement is enabled. A receiver may also duplicate a stereo channel. The test sends a signal to the requested browser channel, but later processing can change it.
Can this test a subwoofer?
The stereo test does not isolate an LFE channel. Use the surround sound test with a supported discrete 5.1 output for an LFE channel check. Bass management may route bass differently.
Does the test prove my speakers are working perfectly?
No. It checks basic playback and stereo routing. Frequency response, distortion, phase, room acoustics, and sound pressure need suitable measurements.