Speaker test
Pans fully left
Equal in both ears
Pans fully right
Left + right together
How to read this
- Click or tap a speaker icon to play its test tone.
- Drag a speaker icon to roughly match where it actually sits in your room.
- Rear channels sound slightly duller on headphones/stereo — that's intentional, it mimics how ears distinguish front from behind.
- On a real multichannel system, we assume the standard channel order (FL/FR/C/LFE/SL/SR/SBL/SBR) — fix your OS sound settings if a channel plays from the wrong speaker.
- Use Customize to add or remove speakers if your setup doesn't match a standard layout.
Stereo · 5.1 – 9.1 · Custom
About this tool
Run a quick left/right speaker test and stereo sound test in seconds, or switch to Surround Sound for a full 5.1/7.1 surround sound test using a room diagram matching your real setup — including a Customize option to add or remove speakers freely. Every channel plays the same reference tone on purpose, so the only thing that changes is where the sound comes from.
Frequently asked questions
What is a speaker test?
A speaker test plays known audio (usually one channel at a time) so you can confirm each speaker is working, wired to the correct channel, and free of buzzing or distortion. This tool runs the test entirely in your browser using the Web Audio API, so there's nothing to install.
How do I test a speaker?
Open the Speaker Test tool, turn your volume to a comfortable level, and click each channel button one at a time. Confirm you hear a clean tone from the correct side or channel — no crackle, buzz, or silence — before moving on to the next one.
How do I test speaker sound quality?
Play the reference tone at a moderate volume first, then gradually increase it. A healthy speaker stays clean and steady at higher volumes; a damaged one buzzes, crackles, distorts, or drops out. Testing each channel individually also makes it easier to catch a weak or muffled speaker you might miss with both playing together.
How do I test the right and left (stereo) speakers?
Use the Headphones and Stereo Test tab and play the left channel, then the right channel, on their own. The sound should come clearly from one side only — if it plays from the wrong side, or both sides, your channels are swapped or your device is set to mono.
What can I use to test speakers?
This free, browser-based Speaker Test tool works on phones, tablets, laptops, and desktops — no app or download required. It covers stereo left/right testing as well as 5.1/7.1/9.1 surround sound testing with a room diagram.
How do I test my phone's speaker?
Open this Speaker Test tool in your phone's browser, turn the volume up, and run the stereo test. It works entirely online — no app install needed — and lets you check both the left and right channels (or your single mono speaker on some phones) for clean, distortion-free sound.
How do I test sound on a computer?
Open the Speaker Test tool in your computer's browser, make sure the correct output device is selected in your OS sound settings, and run the left/right test. If your computer is connected to a multichannel system, switch to the Surround Sound Test tab to check each of the 5.1/7.1 channels individually.
How do I test 5.1 surround sound?
Switch to the Surround Sound Test tab, pick the 5.1 layout, and drag each speaker icon on the room diagram to match where it actually sits in your room. Click each one — front left, front right, center, LFE, surround left, surround right — and confirm the sound comes from the matching physical speaker.
How do I test 7.1 surround sound?
Switch to the Surround Sound Test tab and select the 7.1 layout, which adds rear left/right surround channels to the standard 5.1 set. Arrange the room diagram to match your setup, then click through each of the eight channels to confirm they map to the correct physical speaker.