Stereo Diagnostics
Easily verify your left and right audio channels without needing specialized software or local audio files.
Surround Sound Tester
Tap the center to enable audio, then click the speaker icons to pan a 3D audio test tone around your setup. Ideal for checking spatial headphones and multi-channel systems.
Ready to test. Tap START.
Use headphones or a surround receiver for the best spatial effect. Ensure device volume is moderate.
Audio Diagnostic Utility
Test Your Audio Channels Online
Whether you are configuring a home theater receiver, setting up a gaming headset, or simply running a sound test for a new pair of earbuds, this interactive utility helps you isolate every channel accurately right from your browser.
3D Spatial Panning
Uses the Web Audio API to map sounds in a 360-degree virtual space, fully supporting spatial headsets.
Continuous Pulse Tone
Generates a clear, low-frequency oscillating test tone that makes identifying speaker distortion simple.
Performing a Stereo Sound Check
If you have just plugged in new desktop monitors or earbuds, running a reliable stereo sound check is the first step to ensure your hardware is wired correctly. A standard stereo sound test isolates the left and right feeds, preventing phase cancellation issues that can muddy your music.
You can use the interactive layout above to conduct a headphone left right test. Simply click the FL (Front Left) and FR (Front Right) buttons. Listening to how the audio shifts from one ear to the other is the fastest way to perform a proper stereo speakers test before jumping into a movie or game.
Advanced Audio Channel Testing for 5.1 and 7.1
Modern gaming setups and home theaters rely on complex multi-speaker arrangements. To map each speaker properly, a 7.1 surround sound test online helps confirm that your operating system and receiver are communicating correctly. A dedicated surround sound tester enables you to pinpoint exactly which physical speaker is mapped to which digital channel.
When you conduct an audio channel test using the tool above, clicking the side and rear icons effectively simulates a physical room environment. A comprehensive 7.1 test incorporates eight distinct audio sources—including the center channel for dialogue and the subwoofer (LFE) for deep bass. A full 7.1 surround sound test ensures that sounds approaching from the sides (SL, SR) seamlessly transition to the rear (RL, RR).
Testing Spatial Audio and Headphones
Virtual surround sound is now a standard feature in high-end headsets. If you need to test surround sound headphones, this tool uses standard Head-Related Transfer Functions (HRTF) via your browser to simulate 3D audio. This acts as an accurate surround sound speaker test right inside your ears.
If you want to experience true surround sound in a virtual environment, ensure your headset's spatial audio setting (such as Windows Sonic or Dolby Atmos) is enabled. Running a 7.1 sound test on standard stereo headphones with spatial features turned off will just sound like normal left/right panning. However, with spatial features enabled, a 7.1 surround test will trick your brain into hearing the audio originating from distinctly behind or beside you.
Frequently Asked Questions
Why does the subwoofer (SUB) tone sound different?
The subwoofer button plays a much lower frequency (80 Hz) to properly activate the LFE (Low-Frequency Effects) channel in your setup, helping you confirm your bass is working.
Do I need to download an audio file to test my speakers?
No. This tool generates the 3D test tones dynamically in your browser, meaning you don't need to download large media files to check your surround setup.
Why do the rear channels sound identical to the side channels?
If your headphones or speaker setup only supports standard stereo (2.0) and you lack virtual spatial audio software, your system will automatically downmix side and rear channels into the standard left and right drivers.
Does this tool work on mobile phones?
Yes. However, since most smartphones only have stereo speakers, you will need to connect spatial audio earbuds (like AirPods Pro) to hear the full 3D surround panning effect.