Stereo Audio & Frequency Test

Verify left/right speaker balance, distortion with white noise, and frequency range response.

🎵 Press play on any test to enable live visualizer
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1. Stereo Speaker Balance

Check if left and right channels are perfectly separated and identical in volume.

2. White Noise (Distortion)

Generates constant full-spectrum static. Ideal for hearing cracks, rattle, or buzz in your speaker drivers.

3. Range & Frequency Sweep

Play frequencies from 20 Hz (bass) to 20 000 Hz (treble). Use the manual slider or launch a 10s automatic sweep.

440 Hz

How to Perform a Speaker & Headset Diagnostic

Identifying audio quality issues requires precise testing patterns. This page uses programmatic sound generation for surgical diagnostic precision.

1. Left / Right Speaker Isolation

If you click "Left Channel" and you still hear sound coming from the right earbud, your operating system is set to Mono Audio, or your speaker wiring is bridged. Check your system's ease-of-access settings.

2. Checking for driver rattle & cracks

White noise exercises all frequencies simultaneously. Play white noise at a comfortable volume. If you hear high-frequency cracking, low-frequency buzzing, or a rattling noise from the physical cabinet, your speaker's diaphragm might be torn, or the voice coil is rubbing.

3. Understanding Frequency Sweep

Human ears can theoretically hear from 20 Hz to 20 kHz. Subwoofers operate in the 20 Hz - 150 Hz range (deep vibration). Standard drivers cover 150 Hz - 5 kHz (vocals/instruments), and tweeters handle 5 kHz - 20 kHz (clicks/sibilance). By sweeping, you can identify the exact frequency causing speaker resonance or cabinet vibration.