The sweep test plays a rising tone from about 100 to 10,000 Hz. Use it to find points where your phone speaker crackles, gets quieter or sounds uneven. The test takes about 15 seconds.
The speech test checks the typical voice range from about 300 to 3,400 Hz. Use it to hear whether voices sound muffled, scratchy or unclear through your phone speaker. The test takes about 12 seconds.

Test Phone Speakers Online: Check Stereo, Bass and Sound

More Sound Tests for Your Phone

The treble test plays high frequencies from about 4,000 to 10,000 Hz. Use it to check whether your phone speaker whistles, crackles or sounds distorted with bright tones. The test takes about 12 seconds. Do not hold the phone directly against your ear while the test is playing.
The bass test plays low frequencies from about 100 to 250 Hz. Use it to check whether your phone speaker rattles, vibrates or sounds unusually muffled at deeper tones. The test takes about 15 seconds. On small phone speakers, the lowest frequencies may be only faintly audible.
The mono test plays the same sound through both audio channels. Use it to check whether your phone speaker sounds even, clear and free from noticeable distortion. The test takes about 10 seconds.
Use these channel tests to play the left or right audio channel separately. This makes it easier to hear differences in volume, clarity or distortion between both sides.
Use this stereo test to check whether the left and right channels are clearly audible on your phone. The test takes about 12 seconds: first the sound plays on the left, then on the right, and then through both channels together. This helps you notice if your phone speaker sounds one-sided, muffled, quiet or distorted.
Note: Depending on the phone model, browser and system settings, the sound may not always be routed to one specific physical speaker.
Test your phone speakers directly in the browser – no app, no download. Use simple sound tests to check stereo, mono, bass, treble and overall sound, either before cleaning or after using a speaker cleaning tone.
Not every sound problem comes from the speaker. If voice messages, calls or video chats sound muffled, the microphone may also be affected. Check the microphone opening carefully and clean it only on the surface – for example with a soft, dry cloth. After that, you can test here whether your voice is picked up again.
The microphone test runs only locally in your browser. Nothing is uploaded, stored or sent to us.
Start the test and allow microphone access in your browser.
Microphone level: 0%

After starting the test, speak briefly into your phone. If the bar moves, your voice is being picked up by the microphone.

Problem Found During the Speaker Test?

Test Your Phone Microphone

If your phone speaker sounds muffled, quiet or distorted during the test, water, dust or dirt may be one possible cause. On the homepage, you can try our speaker cleaning tone. The tone creates vibrations that may help loosen water or fine dirt from the speaker.

→ Try the speaker cleaning tone on the homepage

Frequently Asked Questions About the Phone Speaker Test

  • 1️⃣What can I check with the phone speaker test?
    With the phone speaker test, you can check sound, stereo, mono, bass, treble and speech clarity directly in your browser. The tests can help you notice whether your phone speaker sounds muffled, quiet, one-sided or distorted.
  • 2️⃣Do the speaker tests work differently on iPhone and Android?
    The sound tests work directly in the browser on iPhones, Android phones and other smartphones. The tests are not tied to one specific model, but playback can vary depending on the device, browser and system settings. If you want to clean an iPhone speaker, you can find a separate guide here:

    → Clean iPhone speaker
  • 3️⃣Can I use the sound tests with headphones, earbuds or AirPods?
    Yes, you can also use the sound tests with headphones, earbuds or AirPods. The stereo test and the left and right channel tests are especially useful for hearing differences between both sides. Keep the volume at a comfortable level and do not play high frequencies too loudly.
  • 4️⃣What should I do if the speaker test looks normal but the sound is still muffled?
    If the speaker test does not show anything unusual but your phone speaker still sounds muffled or quiet, it may help to try different frequencies. On our page with additional speaker cleaning sounds, you can find more tone options for different sound problems.

    → Try more speaker cleaning sounds
  • 5️⃣Can you clean a phone microphone with sound?
    A phone microphone cannot be cleaned reliably with sound. If you are searching for a “phone microphone cleaning sound”, it is important to know that a microphone works differently from a speaker: it does not create vibrations, it only picks up sound. Check the microphone opening carefully and clean it only on the surface, for example with a soft, dry cloth. Do not use needles, liquids or compressed air. After that, you can use the microphone test to check whether your voice is being picked up clearly again.
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