Frequency
Speaker test
Test your speakers and audio output with various tones and sounds
Stopped
Frequency
440Hz
Test tones
Preset frequencies
Bass (20-100)
Mid (250-2K)
High (4K-20K)
Waveform
Stereo test
Channel balance
Frequency sweep
20 Hz → 20,000 Hz
Noise generator
Noise type
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What the speaker test checks
This test plays sounds generated in your browser so you can check speakers and headphones. The stereo test plays a tone in the left channel, the right channel or both, which shows at once whether your channels are swapped or one side is silent. Preset tones from 20 Hz to 20 kHz let you check bass, mids and treble one at a time.
The frequency sweep glides from 20 Hz to 20 kHz over 3 to 30 seconds, which reveals rattles, resonances and the point where your speakers or your ears stop. Most people hear roughly 20 Hz to 20 kHz, less at the top with age. Every sound is synthesized with the Web Audio API in this tab, so no audio files are involved.
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How to test your speakers
- Set your system volume low, then raise it gradually.
- In the stereo test, play Left, then Right, and check that each sound comes from the matching side.
- Pick a preset frequency or move the slider, and choose a waveform.
- Start a frequency sweep and listen for rattles or drop-outs.
- Play white, pink or brown noise to compare the balance between speakers.
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Speaker test FAQ
- How do I test my left and right speakers?
- Use the stereo test. Click Left and the tone should come only from your left speaker or earcup, then click Right. If the sound comes from the wrong side, the cables or headphone sides are swapped. If one side is silent, check the balance setting in your system sound settings before suspecting the hardware.
- Why is there no sound from my speakers?
- Check that the right output device is selected in your system settings, that neither the volume nor the browser tab is muted, and that headphones or Bluetooth are not taking over the output. Small laptop and phone speakers play little below about 100 Hz, so a low test tone can be silent even when the speaker works.
- What is the difference between white, pink and brown noise?
- White noise has equal energy at every frequency and sounds hissy. Pink noise loses about 3 dB per octave as frequency rises and sounds more balanced, which is why it is used to compare speakers. Brown noise drops by about 6 dB per octave and sounds like a deep rumble.
- Does the speaker test use my microphone?
- No. It only plays sounds, which are generated in this tab. It asks for no permissions and does not record or upload anything. To check a microphone, use the Microphone test, which asks for access only when you start it.
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