Are My Speakers Working?
This test generates tones from 20 Hz to 20 kHz using the Web Audio API OscillatorNode and routes them to left, right, or both channels via StereoPannerNode. Try 200 Hz (bass), 1 kHz (midrange), and 10 kHz (treble) to verify full-range output. Most laptop speakers reproduce 200 Hz to 15 kHz; external speakers typically cover the full 20 Hz to 20 kHz range. All audio is generated locally — zero server requests.
Plays test tones through left and right speaker channels across the 20 Hz to 20 kHz range to verify audio output.
Most laptop speakers reproduce 200 Hz to 15 kHz; a subwoofer or external speakers are needed for frequencies below 80 Hz.
Not Tested
440 Hz
Both
What Do Your Results Mean?
| Result | Range | Meaning |
|---|---|---|
| Good | Both channels audible across 200 Hz to 15 kHz | Your speakers are functioning correctly with balanced stereo output across the standard frequency range. |
| Warning | One channel quieter or missing frequencies below 200 Hz | Check speaker connections and audio balance settings. Missing bass is normal for laptop speakers without a subwoofer. |
| Bad | No sound from one or both channels | Speakers may be disconnected, muted, or damaged. Check system volume, cable connections, and output device selection. |
Common Issues and How to Fix Them
No sound plays when clicking Play Tone
Browser autoplay policy may be blocking audio. Click anywhere on the page first, then press Play Tone. Also check that system volume is not muted and the correct output device is selected.
Sound only comes from one speaker
Open your OS audio balance settings and verify the balance slider is centered. If the issue persists, test with headphones to isolate whether the problem is the speaker hardware or software routing.
Sound is distorted or crackling at certain frequencies
Lower the volume. Small speakers distort when playing bass frequencies (below 100 Hz) at high volume. If distortion occurs at all frequencies, the speaker driver may be damaged.
Browser tab shows a muted speaker icon
Right-click the browser tab and select 'Unmute tab' or 'Unmute site'. Some browsers auto-mute tabs that play audio without user interaction.