Speaker Test
Test left and right speakers, verify stereo separation, and play sweep or fixed-frequency tones at a safe volume.
Test interface
Your browser may ask for permission after you press Start.How to use this tool
- Lower the volume before starting, especially with powered speakers or amplifiers.
- Use Left and Right to identify which speaker plays each channel.
- Try the stereo sweep and confirm sound moves predictably between speakers.
- Use the frequency sweep to check for rattles, then stop playback.
Advertisement
Technical explanation
The Web Audio API routes oscillators and a swept sine signal to the left and right output channels. A stereo test cannot compensate for room acoustics, speaker placement, or an operating-system virtual surround effect.
Speaker faults often appear as rattles, dropouts, or imbalance at particular frequencies. The sweep can reveal suspicious sounds, but interpreting them requires care and a reasonable listening level.
Troubleshooting
Only one speaker plays
Check the cable, amplifier channel, and system balance. Swap the left and right cables to isolate the fault.
Rattle at high volume
Reduce the volume immediately. A loose cabinet, damaged driver, or objects vibrating nearby can cause rattling.
No bass
Check the subwoofer connection and crossover settings. Small speakers may not reproduce low frequencies at all.
Volume is still too loud
Use the in-page volume slider and lower your system volume before restarting playback.
Related tools
Frequently asked questions
Advertisement