Speaker Test: Each Channel, Polarity, Bands and a 20 Hz to 20 kHz Sweep
RingtoneGenerator runs a speaker test in your browser, free to try. Play the left speaker, the right or both, a pan sweep, an in phase vs out of phase check with live A/B, three bands and a 20 Hz to 20 kHz sweep of 10 to 60 seconds. If your output reports 6 or 8 channels, a 5.1 or 7.1 walk plays each surround speaker in turn. No sign-up, and nothing is recorded or uploaded.
- Free, nothing uploaded
- Polarity A/B and 3 bands
- 20 Hz to 20 kHz sweep
- 5.1 / 7.1 walk on 6+ channels
Left speaker
Chime
Start low. Steady test tones can sound louder than music, so turn up slowly and stop if anything feels uncomfortable.
- SpacePlay / stop
- LCRLeft / center / right
- BPolarity A / B
- ↑↓Volume
- EscStop
Each speaker should play only its own side. A smooth pan sweep means the stereo image is even; a jump or a dip in the middle points to balance or placement issues.
Flips polarity live, without a gap, so the difference is easy to hear.
In phase should sound solid and centered. If it sounds hollow, wide or thin in the bass instead, and out of phase sounds fuller, one speaker is probably wired + to − (swap that speaker's two wires).
Band-limited pink noise works each part of a speaker: the woofer (low), the voice range (mid) and the tweeter (high). Listen for rattles, buzzing or one side sounding duller than the other.
Listen for buzzing, rattling or sudden drops as the tone moves. Note where the sound fades in at the bottom and fades out at the top: that is the usable range of your speakers in this room.
Surround output
- Output channels
- n/a
- Sample rate
- n/a
- Output latency
- n/a
Reads how many channels your browser can send to the current output device.
Good to know
- This checks what your own device plays. It can't measure loudness in decibels or calibrate speakers.
- Surround tests only work when the browser exposes more than two output channels; most report stereo.
- Phone and laptop speakers can't play deep bass, so the low band and the bottom of the sweep may be quiet or silent.
- 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 Speaker Test Finds That Music Hides
Music hides a lot. A speaker that drops out in quiet passages, a pair wired out of phase, a cabinet that buzzes at one note or a tweeter that has given up can go unnoticed for months. A speaker test plays signals built to expose each fault on its own: one channel at a time, the same sound in and out of phase, one band of frequencies, a slow sweep. RingtoneGenerator puts all of them in one online speaker test, with a live picture of where the sound sits.
- One speaker is silent, or quieter than the other.
- Left and right are swapped on a desk or a TV stand.
- Bass sounds thin and hollow, a sign of a reversed wire.
- A rattle or buzz shows up only at certain notes.
- A surround speaker plays from the wrong place.
What This Online Speaker Test Covers
Five tabs, each one a different speaker check.
Every channel
The core speaker check: Left speaker, Right speaker and Both speakers, plus a Pan sweep and Alternate L / R, with a chime, noise or a 440 Hz tone.
Polarity A/B
Play pink noise or a 70 Hz bass tone in phase and out of phase, and flip between them without a gap.
Three bands
Band-limited pink noise for the woofer (40 to 250 Hz), the voice range (250 Hz to 4 kHz) and the tweeter (4 to 16 kHz).
A sweep you can set
Sweep 20 Hz to 20 kHz or back down, over 10, 20, 30 or 60 seconds, from the left, the right or both.
Real output facts
See the channels your browser reports, the sample rate and the output latency of the current device.
Free and private
No sign-up and no download. Every signal is made in your browser, and nothing is recorded or uploaded.
How to Test Speakers in 3 Steps
Sit where you normally listen, start low and work through the tabs.
- 1
Start quiet
The volume starts at 30 percent. To test speakers fairly, sit in your usual spot and raise it slowly with the slider or the up and down arrow keys.
- 2
Pick a tab and a tile
Choose Channels, Polarity, Bands, Sweep or Surround, then tap a tile to play it. Tap it again, or press Space, to stop.
- 3
Listen and compare
Each tab of the speaker test has a short hint on what good sounds like. Note anything silent, swapped, hollow or buzzing, and fix one thing at a time.
Every Speaker Check in One Place
Use them in any order. Each one tests a different part of a speaker.
Left, Right, Pan Sweep and Alternate
This speaker test starts on the Channels tab. Left speaker and Right speaker should each play from one side only, and Both speakers should sound centered between them. The Pan sweep glides the sound from left to right and back every 5 seconds; a smooth glide means an even stereo image, while a jump or a dip in the middle points to balance or placement. Alternate L / R ping-pongs between the sides. Press L, C or R on the keyboard to jump between left, center and right.
Check Each SpeakerIn Phase vs Out of Phase
Polarity is easy to get wrong when you wire speakers by hand: swap the + and - on one of them and the two cones push in opposite directions. In phase should sound solid and centered, with full bass. Out of phase sounds hollow and wide, with thin bass. Play pink noise or the 70 Hz bass tone and press Switch A / B, or B on the keyboard, to flip live without a gap. If out of phase sounds fuller, swap the two wires on one speaker.
Run the Polarity CheckLow, Mid and High Bands
Band-limited pink noise works one part of the speaker at a time: the woofer with the Low band from 40 to 250 Hz, the voice range with the Mid band from 250 Hz to 4 kHz, and the tweeter with the High band from 4 to 16 kHz. Full range plays all of it. Choose Left, Both or Right under Play from to compare the two sides band by band, and listen for rattles, buzzing or one side that sounds duller than the other. It is the best speaker check for a loose part.
Play the BandsA Sweep From 20 Hz to 20 kHz
The Sweep tab of the speaker test glides a sine tone across the range people can hear, Low to high or High to low, over 10, 20, 30 or 60 seconds. A live readout shows the frequency and a bar shows how far along it is. Listen for buzzing, rattling or sudden drops, and note where the tone fades in at the bottom and out at the top: that is the usable range of your speakers in this room. For a closer look at the low end, open the bass test.
Sweep My SpeakersA 5.1 and 7.1 Surround Sound Test
The Surround tab shows Output channels, Sample rate and Output latency for the current device; press Check my output to read them. When the browser reports 6 or more channels, pick 5.1 or 7.1 and press Walk all channels: pink noise moves from speaker to speaker, and you can tap any speaker on the room map to play it alone. Channels follow the Web Audio order: front left, front right, center, LFE, surround left, surround right, then rear left and rear right on 7.1. When the browser reports 2 channels, the page says so instead of faking surround.
Check My OutputSurround Sound Test: Try the Channel Map
Pick how many channels your output reports and tap a speaker to see what the test does. Only the left and right speakers make a short, quiet blip here; the tool at the top plays every channel.
Channel 1 of 6 · walk step 1
Front left
Plays from its own side only. Tap it to hear a short, quiet blip from that side right now.
A browser can send surround only to a device it sees as 5.1 or 7.1. Chrome or Edge with a 5.1 or 7.1 device set as the default output may report 6 or 8 channels. Many TVs, soundbars and Bluetooth speakers accept only stereo from a browser; then the walk stays off and the Channels tab is the right speaker check.
Speaker Check Tips for Clear Results
Small habits that make any speaker test more useful.
Make a triangle
Place the two speakers and your head at the corners of an equal-sided triangle, with the tweeters near ear height.
Center the balance
Set the balance slider in your sound settings to the middle before you judge left and right.
Listen from your seat
Run the speaker test where you actually sit. Walls and corners change the bass a lot.
Change one thing
Move one speaker, swap one wire or change one setting, then test speakers again, so you know what helped.
Speaker Test Options Compared
What each way to test speakers can and cannot do. None of them replaces a measurement microphone.
| Speaker Test Options Compared | RingtoneGenerator speaker test | Windows or macOS speaker setup | YouTube test videos | AV receiver test tones |
|---|---|---|---|---|
| Left and right, one at a time | Some videos | |||
| Pan sweep and alternate L / R | Some videos | |||
| Polarity, in and out of phase | Rare | |||
| Low, mid and high bands | Some videos | |||
| 20 Hz to 20 kHz sweep you can set | 10 to 60 s, up or down | Fixed length | ||
| 5.1 and 7.1 channels one by one | When 6+ channels are reported | Usually stereo in a browser | ||
| Shows channels and sample rate | In settings | |||
| Works on a phone | ||||
| Measures level in dB | With its setup mic |
Who Needs a Speaker Sound Test
Anyone who just set up, moved or rewired a pair of speakers.
Desk speakers
After plugging in new computer speakers or a monitor with built-in speakers, a quick speaker test shows whether the left one really plays on the left.
Home theater
Run a surround sound test from a PC that reports 6 or 8 channels, and catch a swapped surround pair.
Hand-wired hi-fi
Bare speaker wire is easy to reverse. The polarity check finds a pair wired out of phase in seconds.
Phone and laptop speakers
Hear how little bass a small speaker plays, and check that both sides of a stereo phone work.
Studio monitors
Confirm both monitors play and match before a mix session. A speaker test is a quick listen, not a calibration.
Bluetooth speaker pairs
A stereo pair of wireless speakers can come up swapped. Left speaker and Right speaker tell you which is which.
Speaker Test FAQ
Clear answers about testing speakers in a browser, and where the limits are.
How do I test speakers online?
Open this online speaker test, keep the volume low and tap Left speaker, then Right speaker, then Both speakers. Each should play only where it should. Then use the Polarity, Bands and Sweep tabs to check phase, each driver and the full range.
How can I tell if my left and right speakers are swapped?
Play Left speaker. If the sound comes from the speaker on your right, they are swapped: switch the two plugs or cables at the computer or amplifier, or look for a swapped-channel setting. The left right sound test has more checks for this.
What does out of phase mean for speakers?
One speaker cone moves out while the other moves in, because the + and - wires are reversed on one of them. Bass cancels and the center sounds hollow. Play In phase and Out of phase here; if out of phase sounds fuller, swap the wires on one speaker.
Can I run a surround sound test for 5.1 or 7.1 here?
Yes, when your browser reports 6 or more output channels, for example Chrome or Edge with a 5.1 or 7.1 device set as the default output. The Surround tab then walks every channel and plays each one alone. If it reports 2 channels, the page tells you, and true surround is not possible from that browser.
Why does it say my output has only 2 channels?
That is what the browser can send to the current device. Many TVs, soundbars, HDMI setups and Bluetooth speakers accept only stereo from a browser, even if they play surround from a disc or an app. Set the device up as 5.1 or 7.1 in your system sound settings, reload the page and press Check my output again.
Why is there no bass from my laptop or phone speakers?
Small speakers cannot move enough air for deep bass, so in a speaker test the Low band and the bottom of the sweep may be quiet or silent. That is normal. For more on the low end, run the bass test.
What should a frequency sweep sound like?
A smooth tone that rises steadily, with no buzzing, rattling or sudden drops. The very bottom and top fade out on most speakers; where they fade is your usable range in that room.
Can a speaker test fix my speakers?
No. It shows what is wrong, such as a silent channel, a reversed wire or a rattle, so you know what to fix. It does not repair hardware, clean a speaker or eject water.
Is it safe to test speakers with tones and noise?
Yes, at a normal volume. Start at the default 30 percent and raise it slowly; the player warns you from 70 percent. Deep tones and long sweeps at full volume can strain small speakers, so keep it moderate.
Does this online speaker test work on a phone?
Yes. It runs in up-to-date Chrome, Edge, Firefox and Safari on phones, tablets and computers. Tap a button first, because browsers only start audio after a tap.
Can it measure how loud my speakers are?
No. It cannot measure loudness in decibels or calibrate speakers. To estimate the sound level in the room, use the decibel meter.
Is this speaker sound test free and private?
Yes. It is free with no sign-up, every signal is generated in your browser, and nothing is recorded or uploaded.
How is this different from the sound test?
The sound test is a guided 2-minute check with yes or no answers. This speaker test goes deeper, with polarity, bands, an adjustable sweep and surround channels.
How do I test headphones instead?
Use the headphone test. It adds 3D sound around your head and a check that left and right are not swapped.
More Tests After Your Speaker Check
Go deeper on bass, tones, channels and your microphone.
Put Your Speakers to Work
Speakers sound right? Make a tone that rings out on them, or start with the ringtone maker on our home page.
Run Your Speaker Test Now
Five tabs in one speaker test: every channel, polarity, three bands, a 20 Hz to 20 kHz sweep and a 5.1 or 7.1 walk when your output allows. It is free, needs no sign-up, and nothing is recorded or uploaded.