headphones Stereo Channel Check

Click to play sound on specific channel.

graphic_eq Frequency Sweep

20 Hz
20Hz 1kHz 10kHz 20kHz
warning

Warning: Lower volume before playing high frequencies.

speaker_group Bass / Subwoofer Test

Select a preset frequency or use the slider to test deep bass output.

40 Hz
20Hz 100Hz 200Hz
30%
warning

Use caution with subwoofers. Start at low volume.

graphic_eq Noise Generator

Use noise signals for speaker burn-in, focus, relaxation, or masking external sounds.

30%
mic

🎤 Also Test Your Microphone

Check your microphone input levels, visualize audio frequency, and test recording playback.

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Complete Speaker & Audio Testing Guide

Stereo Separation

Ensuring your left and right channels are correctly wired is crucial for gaming, movies, and music. "Phantom center" imaging relies on perfectly balanced stereo output.

Bass Response

Testing bass frequencies (20-200Hz) reveals your speaker's low-end capability. Small speakers may not reproduce below 80Hz, while subwoofers should handle 20-40Hz.

Frequency Response

Most human hearing ranges from 20Hz to 20kHz. As we age, the upper limit decreases. This sweep test checks both your hardware's capability and your own hearing range.

Noise Signals

White, pink, and brown noise serve different purposes: speaker burn-in (aging), focus enhancement, sleep aid, and masking ambient noise. Pink noise is most natural to human hearing.

security 100% Client-Side Processing

All audio is generated locally in your browser using the Web Audio API. No data is sent to any server.