MotionShine01 / Speakers
Test speakers and headphones
Check left and right, find rattles with a low sweep, and hear where the bass of a small speaker fades out.
Free tool
Tone generator, any frequency.
Play a sine, square, sawtooth or triangle wave at any frequency from 1 Hz to 22,000 Hz, sweep from one frequency to another, or play white, pink or brown noise. Send it to the left or right speaker to test a stereo setup, and save any sound as a WAV file.
A4
Press Play to sweep
White hisses evenly across all pitches. Pink is softer and sounds even to the ear. Brown is a deep rumble, like a waterfall.
Start quietly and turn up slowly. High tones can be loud even when they seem faint.
Wave
Save
Saved at a steady level, whatever the volume above.
Sounds are made in your browser. Nothing is uploaded.
What it is for
Test, tune and focus.
02 / Hearing
Find your top frequency
Sweep up and note where the sound disappears on your headphones. The highest tone people hear drops with age.
03 / Noise
Mask distractions
White, pink or brown noise covers background chatter while you work or sleep.
This is not a hearing test. If you are worried about your hearing, see a hearing professional.
Questions
Good to know.
Why can I not hear very low or very high tones?
Human hearing covers roughly 20 Hz to 20,000 Hz when young, and the top falls with age. Small speakers and laptop speakers also cannot play deep bass, so a 30 Hz tone may be silent on them while headphones play it.
What is the difference between the waves?
A sine is one pure frequency. Square, sawtooth and triangle add overtones above it, so they sound buzzier at the same pitch; square and sawtooth are the brightest.
What does "even per octave" mean for a sweep?
The sweep spends the same time on each octave (20 to 40 Hz, 40 to 80 Hz and so on), which matches how we hear pitch. A straight line rushes through the low notes and lingers on the high ones.
Is it safe for my speakers and ears?
Keep the volume low at first. Long, loud tones, especially very low or very high ones, can tire your ears and strain small speakers.
Can I use the WAV files in my own projects?
Yes. They are plain test tones made in your browser, free to use anywhere.