How to Test Your Speakers
- Turn the system volume down, then press Both and raise it to a comfortable level.
- Press Left and Right. Each tone should come only from that speaker.
- Play 60 Hz, 440 Hz and 4 kHz to check bass, midrange and treble.
- Play the Sweep from 40 Hz to 16 kHz and listen for the sound fading, buzzing or cutting out.
What Each Test Checks
| Test | What you should hear | Problem if not |
|---|---|---|
| Left | Tone only from the left speaker | Swapped or mono output |
| Right | Tone only from the right speaker | Swapped or mono output |
| Both | Tone centred between the speakers | One speaker louder — balance setting or fault |
| 60 Hz | Low hum (if your speakers can play it) | Small speakers can’t; buzzing means something loose |
| 440 Hz | Clear mid tone — musical A | Distortion means a damaged driver |
| 4 kHz | Sharp, high tone | Dull or missing — check tweeter |
| Sweep | A smooth rise in pitch | Dropouts or rattles at certain pitches |
No Sound? Check These First
- Output device: click the speaker icon in your taskbar or menu bar and choose the right output — it may be sending sound to a monitor or headphones instead.
- Volume and mute: check the system volume, the browser tab (right-click → unmute site) and any volume knob on the speakers.
- Connections: for 3.5 mm speakers, use the green output jack. For USB or Bluetooth speakers, check they’re selected as the output.
- Power: desktop speakers with a power light need to be switched on and plugged in.
Speaker Frequency Range
Human hearing covers roughly 20 Hz to 20 kHz. Most speakers cover less:
- Laptop speakers: about 150 Hz – 18 kHz (very little bass)
- Bookshelf speakers: about 50 Hz – 20 kHz
- With a subwoofer: down to 25–35 Hz
Hearing the top of the sweep also depends on your ears — high-frequency hearing naturally declines with age.
Testing Headphones?
Headphones need a few different checks, like polarity. Use the headphone test instead.
Frequently Asked Questions
Why Does the Left Test Play from the Right Speaker?
Your speakers are swapped. Swap the left and right cables at the speakers or amplifier, or move the speakers. On some systems you can also swap channels in the sound settings.
Why Do I Hear Sound from Both Speakers on the Left Test?
A mono setting or audio enhancement is mixing the channels. In Windows, turn off "Mono audio" in Accessibility → Audio, and disable spatial sound or enhancements for the device.
Why Can't I Hear the 60 Hz Tone?
Small laptop and monitor speakers physically can't reproduce deep bass. That's normal. Bookshelf speakers usually reach around 50–60 Hz; a subwoofer is needed for the lowest bass.
Is the Frequency Sweep Safe for My Speakers?
Yes, at sensible volume. Start with the system volume low and raise it gradually. Very loud high-frequency tones can damage tweeters and your hearing.
Why Do I Hear Buzzing or Rattling?
During a low tone, buzzing usually comes from something loose — a speaker grille, nearby objects, or a damaged speaker cone. Move the speaker away from other objects and listen again.
Related Tests
- Headphone TestMake sure your headphones play each side correctly, are wired in phase, and cover the full frequency range.
- Microphone TestCheck that your microphone works, see how loud it is, and hear exactly how you sound.
- Webcam TestCheck that your camera works and see the resolution and frame rate it actually delivers.
Last updated · Part of our audio & video tests.