Sound test
Play a test tone or noise, from 20 Hz bass to 20 kHz treble.
Starts quiet on purpose. Turn your device volume down before playing, then raise it slowly. Very low and very high frequencies can be loud or unpleasant at levels that sound normal for music.
Related tools
Test speakers
Play a beep on the left speaker, the right speaker, then both, to check channels and wiring.
Test keyboard
Press any key and see it register on a full on-screen keyboard, with key codes and rollover.
Test screen colors
Fill your screen with red, black, white, green, or blue, or run a ghosting test.
A tone generator built for checking speakers
20 Hz to 20 kHz
A logarithmic slider, so each step sounds like an even change in pitch.
Left, right or both
Send the sound to one channel to check each speaker or earcup.
White and pink noise
Steady noise for spotting rattles and balance problems.
Private, nothing uploaded
The test runs in your browser tab. No file, key press, click or sound leaves your device.
Test your sound in three steps
- 1
Lower your device volume
Start quiet. The test volume is capped, but your system volume still decides how loud it is.
- 2
Pick a tone or noise and a speaker
Choose a frequency, or a preset, or switch to white or pink noise. Choose left, right or both.
- 3
Press Play and listen
Slide the frequency up and down and listen for where the sound fades, rattles or disappears.
What a test tone tells you
Clean test tones make it easy to hear what a speaker or pair of headphones leaves out.
Checking new headphones
Sweep the range and hear where the bass or treble falls away.
Finding a rattling panel or loose part
Play a bass tone and listen for buzzing from the speaker, desk or shelf.
Setting up a room
Use pink noise at a low level to compare how different positions sound.
Frequently asked questions
What frequencies can people hear?
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The textbook range is 20 Hz to 20 kHz. In practice most adults stop hearing the top of that range as they age, often by 15 to 17 kHz, and speakers or headphones rarely reproduce the very lowest bass. Not hearing 20 Hz or 19 kHz is normal.
How do I test my bass?
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Play 60 Hz and then slide down towards 30 Hz. A speaker that handles bass well keeps the tone clean and even. If it vanishes, thins out or rattles, that is where its bass response ends.
What is the difference between white and pink noise?
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White noise has equal energy at every frequency and sounds hissy. Pink noise has equal energy per octave, so it sounds more even and natural. Pink noise is the one used to compare speaker and room balance.
Will this damage my speakers or my ears?
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The test volume is capped at half of full scale and starts at 20%. Even so, high-pitched tones and very low bass can seem quiet but be hard on speakers and ears at high settings. Start with your device volume low and raise it slowly.
Why is there no sound?
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Check the device volume and mute, the output device your computer is using, and that the browser tab is not muted. Some browsers only allow audio after you click, which Play does.
Does it use audio files?
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No. The tones and noise are generated live by your browser's Web Audio engine, so nothing is downloaded and nothing is uploaded.
Test your sound now
Free, no account needed.