Audio test tools
Everything here runs right in your browser. There's nothing to install and nothing to upload. Every tone is made on your device the moment you press play.
Tone Generator
Play a pure tone at any pitch from 20 Hz to 20 kHz. You'll also find a frequency sweep, to hear where your speakers or your ears drop off.
Bass & Subwoofer Test
Sweep through the low end to hear where your bass kicks in, and find the notes that make things rattle. There's also a subwoofer kick, for checking punch and port noise.
Hearing Range Test
Step up through higher and higher tones and find the highest one you can hear.
Microphone Test
Check that your mic is picking you up, and watch the level move as you talk. Then record a few seconds and hear what other people hear.
Speaker Test
Play a tone from the left speaker, the right, or both, and make sure each one works. You can also check that the balance hasn't drifted off-centre.
Headphone Test
Check that left and right are the right way round, that neither side is dead, and that your headphones are wired correctly. Wrong wiring sounds hollow, with no centre.
Noise Generator
Play white, pink or brown noise, for testing speakers, drowning out background sound, or just hearing the difference.
Surround Sound Test
Play each speaker of your 5.1 or 7.1 setup in turn, and check the sound comes from where it should.
Full Sound Check
Go through left, right, balance, polarity, bass and treble in one guided run, and see what passed and what needs a look.
Start quiet. Turn your volume down before you play anything, then bring it up slowly. Test tones pack more energy than music at the same volume, and high tones can be louder than they seem.
Which one do you need?
If a speaker is silent or sounds distorted, start with the tone generator. Playing one tone at a time is the simplest way to find out what's wrong. If something only buzzes or rattles on certain sounds, try the noise generator or the frequency sweep instead. They run through every pitch, so they find the rattle faster.
Checking a subwoofer, or wondering where your speakers run out of bass? Use the bass and subwoofer test. Curious how high you can hear? The hearing range test gives you a rough idea. It isn't a medical test, and that page explains why.