Speaker Test
Test your speakers online in seconds — left and right channel test, frequency sweep, bass and treble check. Verify stereo balance and audio output quality directly in your browser. No download required. Works on Windows 11, Windows 10, macOS, Linux, and ChromeOS.
To change the output device, set it as default in your system sound settings.
Plays a 440Hz tone to the left channel only
Plays a 440Hz tone to the right channel only
Plays a 440Hz tone to both channels simultaneously
Sweeps from 20Hz to 20kHz — tests full frequency range
Plays a 60Hz tone — tests subwoofer and low-frequency drivers
Plays a 10kHz tone — tests tweeter and high-frequency drivers
Click a test button to play a tone through your speakers. Confirm whether you heard it.
Test is partially complete. Continue testing for a full diagnosis.
Possible Causes
- Test has not started. Grant permission and click "Start Test".
Recommended Next Steps
- 1Click "Start Test" to begin measuring.
- 2Check that the volume slider above is set to an audible level (at least 30%).
Complete Speaker Test for Left/Right Channels & Frequency Response
Need to test your speakers before a movie, music session, or gaming? This free speaker test tool lets you perform a full audio output check online in seconds. Test left and right speaker channels individually, run a frequency sweep from 20Hz to 20kHz, check bass and treble response, and verify stereo balance — all without installing any software. Whether you want to test computer speakers, check a Bluetooth speaker, or run a left right speaker test, this tool covers every scenario.
Understanding Your Speaker Test Results
You clicked "Yes" — the speaker is producing sound correctly. Both the channel and frequency range are functional. No action needed for this test.
You clicked "No" — the speaker is not producing sound. Check connections, volume level, audio balance, and default output device. The diagnostic summary below will guide you through specific troubleshooting steps.
The sweep test plays tones from 20Hz to 20kHz. Listen for volume drops, buzzing, or distortion at any frequency. Missing frequencies may indicate damaged drivers or crossover issues.
If the volume slider is below 30%, you may not hear the test tones clearly. Increase the volume to at least 50% for accurate testing. Remember that very high volumes can damage speakers at certain frequencies.
When Should You Test Your Speakers?
Test your speakers before movie night to ensure both left and right channels are working. A quick speaker test ensures you won't miss dialog or sound effects due to a dead channel.
Run a frequency sweep before your music session to verify full-range response. Missing bass or treble can ruin the listening experience — catch issues before they affect your enjoyment.
Spatial audio in games relies on stereo separation. Test left and right speakers before gaming to ensure you can hear footsteps and directional audio cues correctly — critical for competitive gaming.
Can't hear the other person during calls? Run a speaker test to verify your audio output is working before joining Zoom, Teams, or Google Meet. No more "can you hear me?" moments.
Just bought new speakers or headphones? Test them right away to verify both channels work, check frequency response with the sweep test, and ensure bass and treble are reproducing correctly.
Speaker not working? Use this tool as a speaker checker to diagnose problems — dead channel, balance issue, blown tweeter, or missing bass. Test your speakers online and pinpoint the issue fast.
Need to test both input and output? Run our speaker test to verify your audio output, then visit our microphone test to check your input. Together they cover the full audio pipeline for calls and recordings.
Just swapped speaker cables, moved your setup, or plugged into a different audio jack? Run a quick left right speaker test to confirm both channels are still working and the polarity is correct.
Laptop speakers can fail or degrade over time. Run a speaker test to verify both channels are producing sound and the frequency response hasn't deteriorated — especially useful for older laptops.
Why Use Our Online Speaker Test
Play a 440Hz tone through only the left speaker to verify the left channel is producing sound correctly. Essential for stereo balance verification.
Play a 440Hz tone through only the right speaker. Compare with the left channel test to detect imbalances or dead channels.
Play a tone through both speakers simultaneously for a quick overall check. Perfect for verifying that your audio output is functional.
Sweep from 20Hz to 20kHz over 8 seconds. Listen for missing frequencies, buzzing, or distortion — catches driver and crossover issues.
Plays a 60Hz tone to test your subwoofer and low-frequency drivers. Verify that bass is reproducing correctly and your subwoofer is connected.
Plays a 10kHz tone to test your tweeters and high-frequency drivers. Catches blown tweeters and high-frequency reproduction issues.
Adjustable volume slider (0-100%) with real-time gain control. Set the perfect level for accurate testing without damaging your speakers.
Runs on Windows, macOS, Linux, and ChromeOS. Works in Chrome, Edge, Firefox, Safari, and Opera. No installation required.
All audio is generated locally in your browser using the Web Audio API. No audio is recorded, uploaded, or stored. The tool only plays sound — it never listens.
No installation, no plugins, no signup. Just open this page and test your speakers online immediately — it works right in your browser.
After testing, get an AI-powered diagnostic summary with possible causes and recommended next steps — no more guessing what went wrong.
Export your diagnostic report as PDF, copy a text summary, or generate a shareable URL. Perfect for warranty claims and tech support.
Supported Scenarios & Limitations
Quickly check whether Speaker Test is the right tool for your needs. The lists below show exactly what this browser-based tool can and cannot do.
Works With
- Built-in laptop speakers (MacBook, Dell, HP)
- External computer speakers (2.0 and 2.1 systems)
- Bluetooth speakers and headphones
- USB speakers and DACs
- Gaming headsets and headphones
- Wireless earbuds (AirPods, Galaxy Buds)
- Monitor speakers with built-in audio
- Left/right channel separation test
- Frequency sweep (20Hz - 20kHz)
- Bass (60Hz) and treble (10kHz) tests
Not Supported
- Repair speaker hardware (blown drivers, damaged cables)
- Update or install audio drivers
- Test multi-channel surround sound (5.1, 7.1, Atmos)
- Measure speaker frequency response with precision (use REW)
- Calibrate room acoustics or speaker placement
- Fix motherboard or sound card hardware issues
Speaker Test only verifies whether input events reach the browser. It cannot determine whether a failure is caused by hardware, drivers, firmware, or the operating system.
Common Speaker Problems You Can Detect with This Test
🔇 No Sound from Either Speaker
Both the left and right speaker tests produce no sound. Causes: speakers not connected, muted output, wrong default device, or audio driver failure. Check your system sound settings, verify the correct output device is selected, and ensure the volume is not muted.
👈 No Sound from Left Speaker Only
The right speaker works but the left doesn't. Causes: audio balance shifted fully right, loose left channel cable, damaged left speaker driver, or a faulty audio jack. Check the L/R balance in your OS sound settings and inspect the speaker cable connections.
👉 No Sound from Right Speaker Only
The left speaker works but the right doesn't. Same causes as the left channel issue but mirrored. Check the audio balance, cable connections, and test with a different audio source to rule out a hardware failure.
🎵 Missing Bass (No 60Hz Response)
The bass test tone is inaudible. Causes: no subwoofer connected, subwoofer powered off, crossover frequency misconfigured, or damaged low-frequency driver. Small laptop speakers and earbuds may not reproduce 60Hz — this is normal, not a defect.
🎶 Missing Treble (No 10kHz Response)
The treble test tone is inaudible. Causes: blown tweeter, blocked tweeter grille, equalizer cutting high frequencies, or age-related hearing loss. Try increasing the volume — if the tone becomes audible at higher volumes, the tweeter is likely functional.
⚖️ Unbalanced Stereo (Loudness Difference)
One speaker is noticeably quieter than the other. Causes: audio balance not centered in OS settings, one speaker partially damaged, or different speaker sensitivities. Check and center the L/R balance slider in your system sound settings.
📡 Distortion at Specific Frequencies
The frequency sweep reveals buzzing, rattling, or distortion at certain frequencies. Causes: damaged speaker cone, loose speaker grille, blown driver, or speaker cabinet resonance. Note the frequency range where distortion occurs for targeted repair.
🔄 Wrong Audio Output Device
Sound plays from the wrong device (e.g., laptop speakers instead of external speakers). Causes: incorrect default output device selected. Change the default audio output in your system sound settings: Windows (Settings > System > Sound > Output) or macOS (System Settings > Sound > Output).
How to Test Your Speakers: Guide to Audio Output Quality
Whether you're watching a movie, listening to music, gaming, or joining a video call, clear audio output is essential. Our online speaker test helps you verify your setup before you press play — so you can enjoy your content without surprises. This guide covers everything from basic channel testing to advanced frequency response analysis.
How to Set Up and Test Your Speakers
- Connect your speakers — External speakers connect via 3.5mm audio jack, USB, or Bluetooth. Built-in laptop speakers require no connection.
- Set as default output — In your OS sound settings, select your speakers as the default output device.
- Adjust volume — Set the volume to a comfortable level (50-70% is ideal for testing). Too low and you may miss quiet frequencies; too high and you risk damage.
- Test both channels — Click "Both Speakers" for a quick check, then test "Left Speaker" and "Right Speaker" individually to verify stereo separation.
- Run the frequency sweep — Click "Frequency Sweep" and listen for the tone rising from 20Hz to 20kHz. Note any frequencies that are missing, quiet, or distorted.
- Check bass and treble — Run the bass (60Hz) and treble (10kHz) tests to verify your subwoofer and tweeter are working. These catch driver-specific issues.
Understanding Frequency Response
Human hearing ranges from approximately 20Hz (deep bass) to 20kHz (high treble). A healthy speaker system should reproduce this entire range smoothly. The frequency sweep test helps you identify problems at specific frequencies:
- 20-60Hz (Sub-bass) — Felt more than heard. Tests subwoofers and large woofers. Missing sub-bass may indicate no subwoofer or a damaged low-frequency driver.
- 60-250Hz (Bass) — The foundation of music and sound effects. Tests standard woofers. Distortion here may indicate a damaged cone or cabinet resonance.
- 250Hz-4kHz (Midrange) — Where most speech and vocals live. Tests mid-range drivers. This range should be clear and prominent.
- 4kHz-20kHz (Treble) — Cymbals, high harmonics, and air. Tests tweeters. Missing treble may indicate a blown tweeter or high-frequency hearing loss.
Audio Output Devices and Their Characteristics
Different speaker types have different frequency response characteristics. Understanding these helps you interpret your test results:
- Built-in laptop speakers — Limited bass response (typically no output below 100Hz). Missing 60Hz bass tone is normal, not a defect.
- Bluetooth speakers — Good midrange, limited extreme bass/treble due to small drivers. May compress frequencies via Bluetooth audio codec.
- Desktop speakers (2.0) — Better full-range response than laptop speakers. Should reproduce most of the sweep test clearly.
- 2.1 speaker systems — Include a subwoofer for bass. Should reproduce 60Hz clearly if the subwoofer is connected and powered.
- Headphones — Typically have the widest frequency response. Best for detailed frequency sweep testing.
Speaker Types & Device Compatibility
Supported Speaker Types
Supported Operating Systems & Browsers
How Our Online Speaker Test Works
Our speaker tester runs entirely in your web browser using the standard Web Audio API. No microphone access is required — the tool only plays audio, it never records or listens.
Step 1: Creating an AudioContext
When you click a test button, we create an AudioContext — the browser's built-in audio processing engine. This context provides the framework for generating and routing audio signals to your speakers.
Step 2: Generating Test Tones
We use an OscillatorNode to generate pure sine wave tones at specific frequencies: 440Hz for channel tests, 60Hz for bass, 10kHz for treble, and a frequency sweep from 20Hz to 20kHz. A GainNode controls the volume, applying smooth fade-in and fade-out to prevent clicks and pops.
Step 3: Channel Routing
For left/right channel testing, we use a ChannelMergerNode to route the audio signal to specific channels. The left speaker test connects only to channel 0 (left), the right speaker test connects only to channel 1 (right), and the both speakers test connects to both channels. This precise routing allows us to test each speaker independently.
Step 4: User Confirmation & Diagnostics
After each tone plays, you confirm whether you heard it by clicking "Yes" or "No". Your responses are fed into our diagnostic engine, which matches your test results against a database of speaker failure patterns to provide targeted troubleshooting recommendations.
Privacy & Security
This speaker tester is designed with privacy as the top priority. Unlike microphone tests that require getUserMedia() permission, the speaker test only plays audio — it does not access your microphone, camera, or any other input device. No permission dialog will appear.
All audio is generated locally in your browser using the Web Audio API. No audio is recorded, uploaded, or stored. The test tones are synthesized in real-time by your browser's audio engine and played directly through your speakers. Nothing ever leaves your device.
The tool does not require any account, login, or personal information. Your test results are stored only in your browser's memory and are permanently deleted when you close or refresh the page. You can use this tool with complete confidence.
Speaker Test FAQ
How do I test if my speakers are working? ▼
Click any test button above — Left Speaker, Right Speaker, or Both Speakers. A 440Hz test tone will play through the selected channel. If you hear the sound, click "Yes" to confirm. If you don't hear anything, click "No" and the tool will guide you through troubleshooting steps. Start with the "Both Speakers" test for a quick check, then test each channel individually to verify left/right balance.
How do I test left and right speakers separately? ▼
Click the "Left Speaker" button to play a tone through only the left channel, then confirm whether you heard it. Next, click "Right Speaker" to test the right channel independently. This left right speaker test verifies that both channels are producing sound and helps you detect if one speaker is dead, disconnected, or if your audio balance is shifted to one side. For the most accurate result, use headphones to clearly distinguish left from right.
What is the frequency sweep test and why should I use it? ▼
The frequency sweep test plays a continuous tone that rises from 20Hz to 20kHz over 8 seconds, covering the full range of human hearing. As the tone sweeps, listen for any sudden drops in volume, buzzing, or distortion at specific frequencies. This helps you identify frequency response issues — if certain frequencies are missing or quiet, your speakers may have damaged drivers, crossover problems, or frequency-specific defects that normal listening might not reveal.
Why is one speaker not producing sound? ▼
If only one speaker is silent, common causes include: (1) audio balance shifted fully to one side in your OS sound settings — check and center the L/R balance slider. (2) A loose or damaged speaker cable — check the connection at both the speaker and the audio jack. (3) A blown speaker driver — the tweeter or woofer may be physically damaged. (4) Incorrect audio output device selected — verify the correct device is set as default. (5) A faulty audio channel on your sound card or motherboard.
Why can't I hear the bass test tone? ▼
The bass test plays a 60Hz tone designed to verify your subwoofer and low-frequency drivers. If you can't hear it: (1) your speakers may not have a subwoofer or low-frequency driver — small laptop speakers and earbuds often can't reproduce 60Hz. (2) Your subwoofer may be disconnected or powered off. (3) An equalizer setting may be cutting low frequencies. (4) The crossover frequency on your speaker system may be set incorrectly. Try increasing the volume and listen carefully — very low frequencies can be felt as much as heard.
Why can't I hear the treble test tone? ▼
The treble test plays a 10kHz tone to check your tweeters and high-frequency drivers. If you can't hear it: (1) your tweeter may be damaged or blocked by a speaker grille. (2) Human hearing sensitivity decreases at high frequencies, especially with age — if you're over 40, 10kHz may be difficult to hear. (3) An equalizer setting may be reducing high frequencies. (4) Low-quality speakers may not reproduce 10kHz well. Try increasing the volume — the tone should become audible if the tweeter is functional.
Can this speaker test detect hardware damage? ▼
No. This tool verifies whether sound is produced by each channel and frequency range, but it cannot determine the physical cause of a speaker failure. If a channel produces no sound, the problem could be a blown driver, a damaged cable, a faulty audio jack, or a software issue — our tool cannot tell you which. What it can do is confirm which channel or frequency range has a problem, helping you isolate whether the issue is hardware or software before seeking repair or replacement.
Can I test Bluetooth speakers and headphones? ▼
Yes. This speaker test works with any audio output device your computer recognizes — Bluetooth speakers, wireless headphones (AirPods, Galaxy Buds), USB speakers, built-in laptop speakers, external monitors with built-in speakers, and dedicated speaker systems. Simply connect your Bluetooth device, set it as the default audio output in your system settings, then run the test. Note that Bluetooth audio may compress certain frequencies, so results may differ slightly from wired connections.
Does this speaker test work on Mac, Windows, and Linux? ▼
Yes, our speaker tester works on all operating systems — Windows 11, Windows 10, macOS, Linux, and ChromeOS — as long as you use a modern web browser (Chrome, Edge, Firefox, Safari, Opera). The test uses the standard Web Audio API, which is universally supported. No microphone permission is needed — the tool only plays audio, it does not record. Just open this page in your browser, set your speakers as the default output device, and click any test button.
Why can't I select a specific audio output device in the tool? ▼
The Web Audio API plays through your system's default audio output device. To test a specific speaker or headphone, set it as the default output device in your OS sound settings: On Windows, go to Settings > System > Sound > Output. On macOS, go to System Settings > Sound > Output. After changing the default device, refresh this page and run the test again. The tool may show available output devices in a dropdown if your browser supports the enumerateDevices API.
Quick Summary
Speaker Test is a free online speaker test tool that lets you test left and right speaker channels, run a frequency sweep from 20Hz to 20kHz, and check bass and treble response directly in your browser using the Web Audio API. It verifies stereo balance, detects dead channels, and identifies frequency response issues — all without downloading any software. No audio is ever uploaded to a server. Use this speaker test tool before movies, music, gaming, or calls.