Microphone Test

Guide & FAQ

Your browser asks for permission only after you press the button. Nothing is recorded unless you press Record 5 seconds.

Options

Changing an option restarts the test with the new settings.

Guide: Microphone Test

How to check that your microphone works

Press Start microphone test and choose Allow in the browser prompt. Speak normally: the green bar and the waveform should move, and the message turns to Working. The loudest level so far helps you judge input volume; speech should reach between minus 25 and minus 10 dBFS.

Listen to yourself

Press Record 5 seconds, say a sentence, and play it back. Headphones avoid feedback. If the clip is too quiet, raise the input volume in your system settings; if it is distorted, lower it or move away from the microphone.

Troubleshooting

  • Check the physical mute button or switch on headsets and laptops.
  • Choose the right device in the Microphone list; USB and Bluetooth devices show up there.
  • Close apps that use the microphone, such as video calls.
  • Allow the microphone in browser and system privacy settings.

Privacy

The microphone is only opened after you click. Analysis runs in your browser and nothing is uploaded or saved.

FAQ

How do I test my microphone?

Press Start microphone test, allow access when the browser asks, then speak. The level bar should jump as you talk. For a real check, press Record 5 seconds and play the clip back to hear exactly what your microphone captures.

Why does the test say no sound is detected?

The microphone may be muted (look for a mute switch or key), another input may be selected, the input volume may be at zero, or another app may be using it. Use the Microphone drop-down to try other inputs and check your system sound settings.

How do I allow microphone access in my browser?

Click the lock or tune icon at the left of the address bar, set Microphone to Allow for this site, and press Start again. If you chose Block earlier, this is the only way to undo it. On Windows and macOS also check that your system privacy settings allow the browser to use the microphone.

What do echo cancellation, noise suppression and gain control do?

They are processing steps many browsers apply to voice calls. Echo cancellation removes sound from your speakers, noise suppression reduces steady background noise, and automatic gain control evens out loudness. Switch them off to hear the raw microphone.

Is my voice recorded or uploaded?

No. The level, waveform and spectrum are computed in your browser from the live microphone signal and are not stored. The only recording is the optional 5 second clip, which stays in the page memory until you close it.

What does dBFS mean?

dBFS is the level relative to the loudest signal the system can record. 0 dBFS is the maximum, normal speech peaks around minus 20 to minus 10, and a silent room sits near minus 70 or lower.