Audio & Sound•Direct Browser Native API
Speaker & Headphone Stereo Test (L/R)
Test speakers or headphones: discrete left channel, right channel, center, and 360-degree soundstage sweep.
Ready for Testing
Device:
Cue Type:
LEFTSpeaker L
Channel 1
Stereo Balance
◀ Center ▶
RIGHTSpeaker R
Channel 2
How to Test Your Speaker & Headphone Stereo Test (L/R)
- Put on your headphones or position yourself between stereo speakers.
- Click the Left Channel button and ensure audio only comes from the left ear/speaker.
- Click the Right Channel button and ensure audio only comes from the right ear/speaker.
- Click 360° Soundstage Sweep to test fluid panning transition across both sides.
Browser API Precision & Limitations
Cannot diagnose mono headphone wiring defects if audio drivers enforce mono mixing in Windows/macOS.
Standard note: A passing test confirms your operating system and browser receive valid hardware event signals. It does not replace physical laboratory calibration.
Troubleshooting Common Issues
01.If audio plays from both sides when clicking Left: Check OS accessibility settings and disable 'Mono audio'.
02.Ensure your 3.5mm headphone jack is firmly plugged in; loose plugs often cause mono bridging.
03.If left channel sound plays on the right side: check if your headphones are on backwards or swap speaker wires.