Online Audio & Speaker Testing Lab

Professional audio testing tool for headphones and speakers. Features stereo verification, frequency response sweep, bass test, phase check, and microphone visualization.

Volume

80%

Stereo Check

Test left, right, and center channels to ensure correct headphone orientation or speaker placement.

Frequency Response

20Hz - 20kHz sine wave sweep to test the audio spectrum response of your equipment and hearing range.

Manual Control

Bass Test

High-intensity low-frequency pulses to test subwoofer performance and rattle. (Warning: Use low volume initially)

Phase Testing

Check speaker polarity wiring. In-phase should sound centered; out-of-phase sounds hollow.

Microphone Test

Visualize your microphone input in real-time to check for signal presence.

Testing Tips

Always start with a low volume to protect your hearing and equipment.
When testing stereo, 'Left' audio should only come from your left side.
Frequency response varies by age; most adults cannot hear above 15-17kHz.
Phase cancellation makes out-of-phase audio sound diffuse/spacious.