Speaker Test

Professional hardware check and stereo channel balance tool

Channel Balance (Stereo)

Volume 50%

Sine Frequency 440 Hz

Noise Generator

Frequency Sweep (20Hz - 20kHz)

🛠 Testing Guide

Stereo Check: Click "Left". You should only hear sound from your left speaker or earbud. If you hear it on the right, your headphones are reversed.
Subwoofer: Select 60Hz. If the sound is faint or non-existent, your device lacks low-frequency response (common in phones/laptops).
Rattling: Run the "Sweep". If the sound buzzes or vibrates at specific pitches, you may have loose components in your speaker cabinet.

💡 Did you know?

Pink Noise has equal energy per octave, making it sound "flatter" and more natural to the human ear than White Noise. It is the standard for calibrating audio systems.

Frequently Asked Questions

Why is there no sound?

1. Check your system volume.
2. Ensure the browser tab is not muted.
3. iOS/Android users: Ensure your physical silent switch is off, as it can mute Web Audio API sounds.

Why test Left/Right channels?

Accurate stereo imaging is crucial for music production and gaming (hearing footsteps). This test confirms your speakers are positioned correctly and wired properly.

What is a Frequency Sweep?

This plays a tone that slides from the lowest audible bass (20Hz) to the highest treble (20kHz). It helps identify the limits of your speakers and any crossover issues.