Headphone Test: Left and Right, 3D Sound and a Swapped-Channel Check
RingtoneGenerator runs a headphone test in your browser, free to try, for headphones, earphones and earbuds. Play the left ear, the right or both, take a 4-round check that tells you if they are on the right way round, hear 3D sound circle your head, sweep 20 Hz to 20 kHz, tap tones from 30 Hz to 15 kHz and compare in phase with out of phase. No sign-up, and nothing is recorded or uploaded.
- Free, no sign-up
- 4-round left/right swap check
- 3D sound around your head
- 20 Hz to 20 kHz sweep
Left ear
Chime
Start low. Steady test tones can sound louder than music, so turn up slowly and stop if anything feels uncomfortable.
- SpacePlay / stop
- ←→Left / right (and answers)
- BPolarity A / B
- ↑↓Volume
- EscStop
Each sound should come from one ear only. If a left-only sound leaks into the right ear, check that mono audio is off and that the plug is pushed all the way in.
Are your headphones on the right way round?
Put your headphones on as you normally wear them. We play a chime in one ear at a time, four times, in random order. Tap the ear you heard it in, without looking at the screen labels.
Or tap anywhere on the ring around the head to move the sound there.
The sound is placed with a head-related transfer function (HRTF) built into your browser. Left, right and the sides are easy to hear; front and back are harder for everyone because the HRTF is generic, not measured for your ears.
Bass, mid and treble checks
Good headphones play the whole sweep evenly. Listen for rattles at the bottom, harsh peaks in the middle and where the top end fades out. 30 Hz is felt as much as heard, and above 15 kHz fades with age.
Flips polarity live, without a gap, so the difference is easy to hear.
In phase should sit in the middle of your head. Out of phase sounds spread out or strangely wide. If in phase sounds wide instead, one driver or the cable may be wired in reverse.
Good to know
- 3D sound uses a generic head model, so front / back placement varies from person to person. Speakers can't show the 3D effect well.
- Bluetooth adds a short delay and may thin out very high and very low tones.
- This checks what your own device plays. It can't measure loudness in decibels or calibrate speakers.
- If one side plays in both ears, check that mono audio is off in your system's accessibility settings.
- Every sound is generated in your browser. Nothing is recorded or uploaded, and there is no sign-in.
- Browsers only allow sound after you tap or press a key, so nothing plays until you press a button.
What a Headphone Test Can Find
Headphones fail quietly. One earbud gets softer, a cable starts to crackle, the cups end up on the wrong ears, or a phone setting sends the same sound to both sides. A headphone test plays sounds that make each problem obvious: one ear at a time, a quick round of where-did-you-hear-it, sound placed around your head and a sweep through the whole range. RingtoneGenerator runs that whole check on one page, with a top-down head that lights up the ear that is playing.
- One earbud is silent or quieter than the other.
- Left and right are on the wrong ears.
- Both ears get the same sound, so stereo feels flat.
- Bass is weak because the earbuds do not seal.
- A cable crackles when you turn your head.
Why Test Headphones Here
One headphone test, five tabs, nothing to install.
Each ear on its own
The basic headphone test: Left ear, Right ear, Both ears and Alternate L / R, with a chime, noise or a steady tone.
A real swap check
Which way round? plays four chimes in random order and checks your answers, so you know for sure if left and right are swapped.
3D sound
A sound circles your head or sits where you tap, using the HRTF spatial audio built into your browser.
The full range
A 20 second sweep from 20 Hz to 20 kHz, plus seven quick tones, so you can test headphones from 30 Hz bass to 15 kHz treble.
Polarity A/B
In phase sits in the middle of your head; out of phase spreads out. Flip between them without a gap.
Free and private
No sign-up, no download, and nothing is recorded or uploaded. It works on phones and computers.
How to Test Headphones in 3 Steps
Wear them the way you normally do, then start quiet.
- 1
Put them on, start low
Check the small L and R marks and put them on. Before you test headphones, note that the volume starts at 30 percent; raise it slowly with the slider or the up and down arrow keys.
- 2
Play each ear
On the Left / right tab, tap Left ear and Right ear, or press the left and right arrow keys. Each sound should come from one ear only.
- 3
Run the deeper checks
Take the Which way round? check, then try 3D sound, Frequency and Polarity. Every tab of the headphone test has a hint on what good sounds like.
Every Headphone Sound Test, Explained
Five tabs, each one aimed at a different headphone problem.
Left Ear, Right Ear, Both and Alternate
The Left / right tab is the classic headphone test. Left ear plays only in the left cup, Right ear only in the right, and Both ears should sit in the middle of your head. Alternate L / R ping-pongs between them. Pick a chime, noise or a steady tone as the signal. If a left-only sound leaks into the right ear, check that mono audio is off in your system settings and that the plug is pushed all the way in.
Play Each EarAre Your Headphones on the Right Way Round?
Labels wear off, and some earbuds look the same on both sides. Press Start the check on the Which way round? tab: a chime plays in one ear at a time, four times in random order, and you tap Left ear, Right ear or I didn't hear it without looking at the labels. If every answer matches, they are on the right way round. If every answer is the opposite, left and right are swapped: turn them around, or look for a swapped-channels setting. Mixed answers come back as Not conclusive.
Start the Swap Check3D Sound That Moves Around Your Head
The 3D sound tab places a shaker, a chime or noise around your head with an HRTF, the head-related transfer function built into your browser. In Orbit mode the sound circles you, slow, normal or fast, clockwise or counter-clockwise. In Place mode it sits at the front, right, back or left, or wherever you tap on the ring. Left, right and the sides are easy to hear; front and back are harder for everyone, because the HRTF is generic, not measured for your ears. Wear headphones for this part of the headphone test; speakers cannot show it.
Start 3D SoundFrequency Sweep and Bass, Mid and Treble Tones
The Frequency tab sweeps a tone from 20 Hz to 20 kHz over 20 seconds, from the left, the right or both, while a live spectrum shows it. Seven quick tones check single points: 30, 60 and 100 Hz for bass, 1 kHz for mid, and 8, 12 and 15 kHz for treble. Good headphones play the sweep evenly, which makes it the most telling headphone sound test here. Listen for rattles at the bottom and harsh peaks in the middle; 30 Hz is felt as much as heard, and the top end fades with age. For more on the low end, try the bass test.
Sweep My HeadphonesPolarity: In Phase vs Out of Phase
Pink noise played in phase should sit right in the middle of your head. Out of phase, with one side flipped, it spreads out and is hard to place. Press Switch A / B, or B on the keyboard, to flip without a gap. If in phase sounds wide instead, one driver or the cable may be wired in reverse. It is a rare fault, but this headphone sound test finds it in seconds.
Check Polarity3D Headphone Test: Move the Sound
Tap around the head, change the speed and direction, and play a short, quiet chime from that spot. Wear headphones for this one.
45° · in front of you
Front right
Tap the ring, or focus it and use the arrow keys, to place the sound. The chime is short and quiet; turn your volume down first.
The bars show roughly how the sound splits between your ears at each angle. Your brain also uses tiny timing and tone differences, which is why a sound at 90 degrees is clearly on the right while front and back can blur. The headphone test at the top runs the same idea live, with the full HRTF.
Headphones Test Tips
Small things that change what you hear.
Find the L and R marks
Most headphones print a small L and R inside the band or on the stem. Check them before the swap check.
Turn mono audio off
Phones and computers have a Mono audio switch in accessibility settings. Leave it off for any stereo check.
Get a good seal
In an earbuds test, a loose fit is the top reason for weak bass. Try another tip size if the low tones sound thin.
Bluetooth lags a little
Wireless headphones add a short delay and may soften very low and very high tones.
Headphone Test Options Compared
What each way to test headphones can do. None of them measures frequency response like a lab rig.
| Headphone Test Options Compared | RingtoneGenerator headphone test | YouTube left/right video | System balance slider | Test audio files |
|---|---|---|---|---|
| Left and right, one ear at a time | If you find one | |||
| Checks your answers for swapped sides | 4 random rounds | |||
| 3D sound around your head | HRTF, orbit or place | Some videos | Some files | |
| 20 Hz to 20 kHz sweep | Some videos | Some files | ||
| Bass, mid and treble tones | 7 tones, 30 Hz to 15 kHz | Some videos | ||
| Polarity A/B | Rare | |||
| No ads, nothing to download | ||||
| Measures frequency response |
Earphone Test and Earbuds Test Ideas
From new wireless earbuds to an old studio pair.
New earbuds or headphones
Run a full headphone test on day one, both sides, bass and treble, while a return is still easy.
Wireless earbuds
An earbuds test after an update or a new pairing shows quickly if one bud is silent or quieter.
Wired earphones
Run an earphone test with Alternate L / R playing while you gently move the cable near the plug, to catch a loose wire.
Gaming headsets
3D sound shows how well your headset and your ears place sounds to the side and behind. In a game, the result also depends on its audio settings.
Studio and DJ headphones
Check both cups and polarity before a session. It is a quick listen, not a measurement.
Borrowed pairs
Before a flight or a call on someone else's headphones, a fast check saves surprises; the sound test takes about 2 minutes.
Headphone Test FAQ
Short answers about testing headphones, earphones and earbuds.
How do I test headphones online?
Open this headphone test, put your headphones on and keep the volume low. Tap Left ear, then Right ear: each sound should come from one side only. Then run Which way round? and try 3D sound, Frequency and Polarity.
How do I know if my headphones are on the wrong ears?
Run Which way round?. It plays a chime in one ear at a time, four times in random order, and you tap the ear you heard. If every answer is the opposite of what played, left and right are swapped.
Why does one earbud sound quieter?
Usually a poor fit, a blocked mesh or a balance setting. Check that the balance slider in your sound settings is centered, try another tip size, and re-pair Bluetooth earbuds. If one side stays quiet in this earbuds test, the driver itself may be worn.
Why do I hear the left sound in both ears?
Mono audio is probably on, or the plug is not pushed all the way in. Turn off Mono audio in your system accessibility settings and reseat the plug. A mono adapter or cable does the same.
Does 3D sound work with any headphones?
Yes, any stereo headphones or earbuds will do. The 3D effect comes from the HRTF in your browser, so even a basic pair shows left, right and the sides in this headphone test. Front and back are harder to tell apart, because the head model is generic. Speakers cannot show the effect well.
Can this headphone test check AirPods?
Yes. AirPods and other Bluetooth earbuds run this headphones test like any output: play each ear, take the swap check and run the sweep. Bluetooth adds a short delay and may soften the lowest and highest tones.
Why can't I hear the 15 kHz tone?
High tones fade with age, and some headphones play them softly. Missing 15 kHz is common and usually not a fault. For more on high frequencies, see the mosquito tone page.
Why does 30 Hz sound so quiet?
30 Hz is felt as much as heard, and many earbuds only reach it with a tight seal. Press them in gently or try a bigger tip. To play any single frequency, use the tone generator.
Is a headphone test safe for my ears?
Yes, at a low volume. The player starts at 30 percent, warns you from 70 percent and fades every sound in and out. Steady tones in headphones can feel louder than music, so turn up slowly and stop if anything is uncomfortable.
Is this a hearing test?
No. A headphone test checks your headphones, and what you hear also depends on the volume and your ears. It cannot diagnose hearing loss; see a hearing professional for that.
Can it measure the frequency response of my headphones?
No. This headphone sound test plays exact frequencies so you can listen for gaps, peaks and rattles, but it cannot measure response or calibrate headphones. That needs a measurement rig.
Does it work on iPhone and Android?
Yes. You can test headphones in up-to-date Safari, Chrome, Edge and Firefox. Tap a button first, because browsers only start audio after a tap, and check that sound goes to your headphones, not the phone speaker.
Is this headphone test free and private?
Yes. It is free with no sign-up, every sound is made in your browser, and nothing is recorded or uploaded.
How is this different from the left right test?
The left right sound test focuses on channels and adds a stereo vs mono A/B on music. This headphone test adds the swap check, 3D sound and the frequency tones. For speakers, use the speaker test.
Next Tests After Your Headphone Test
Channels, bass, high tones and your microphone.
Sounds Worth Hearing on Them
Headphones check out? Make something to play on them, starting with the ringtone maker on our home page.
Run Your Headphone Test Now
Each ear, a swap check in 4 rounds, 3D sound, a 20 Hz to 20 kHz sweep and polarity, for headphones, earphones and earbuds. This headphone test is free, needs no sign-up, and nothing is recorded or uploaded.