Output
Requested discrete speaker channels
UserBenchmark / All Tools / Surround Sound Test
Audio
Surround Sound Test
Request a multichannel output and play individual speaker channel tones.
Free to useNo downloadNo sign-up
Surround Sound Test · At a glance
Quick answer: Request a multichannel output and play individual speaker channel tones. The browser requests discrete output, but the OS or receiver may downmix.
Surround Sound Test
The test loads when you open it. Device access is requested only after you choose to start.
Detailed guide
How to use this tool
- Select the channel layout and play one speaker channel at a time.
- Use an actual multichannel output device for a physical speaker check.
Input
A multichannel audio device and layout
Browser requirement
Web Audio destination channel capabilities
Processing
Runs on your device; no tool-result upload
How it works and what the result means
The Web Audio destination is asked for discrete multichannel output. Your browser, operating system or receiver may downmix it; a successful API request does not confirm physical speaker wiring.
Reading the result
The browser requests discrete output, but the OS or receiver may downmix. An accepted layout is not proof of correct speaker wiring.
What to check next
Check receiver mode, selected output and browser support. Stereo headphones cannot verify six or eight physical speakers.
Use a known multichannel audio device. Stereo headphones cannot verify a physical 5.1 or 7.1 speaker arrangement.
Frequently asked questions
Why do several channel tones come from the same speaker?
The audio path may be downmixing or remapping channels. Review the device configuration before treating it as a speaker fault.
How do I start the Surround Sound Test?
Select a supported channel layout and speaker channel, then play a quiet tone. Stop before moving to the next channel.
Does this tool require a download or an account?
No. Open the interactive tool above in a modern browser. The instructions and explanations are available even with JavaScript disabled; running a test needs JavaScript.
Why can two attempts give different results?
Power settings, background tasks, browser scheduling, operating-system input processing and device settings affect measurements. Compare repeated attempts with identical settings rather than the single highest score.