Microphone reacts to tapping but not speech

You tap your laptop, headset or phone near the microphone and the meter jumps, but your voice barely registers. That can be confusing, but a tap only proves that some sound or vibration reached a microphone. It does not prove that the mic is in the right place for your voice, or that speech is getting through clearly.

Use the Microphone Test to check the selected input, compare speech with a tap and listen to a short recording. Then work through the common causes, from mic placement and processing to permissions and hardware.

Test speech and tapping separately

Open the Microphone Test and press Start microphone. Allow microphone access when your browser asks.
If the device list shows more than one microphone, select the one you expect to use. Speak toward it from your normal position for a few seconds, then pause.
Look at the signal meter and waveform as you speak. The status should change to Sound detected when your voice comes through.
Tap lightly near the microphone, not hard on the device. Compare the meter and waveform for the tap with those for your voice. A tap can create a brief, sharp spike, while speech should make a changing pattern for as long as you talk.
Switch off Noise suppression, Echo cancellation and Auto volume one at a time, testing your voice after each change. These options can change the signal the browser receives.
Press Record 5 seconds, speak at your usual volume, and play the recording back. This helps you tell a moving meter from speech that is actually clear enough to hear.

Do not hit the microphone or blow into it. A strong tap can make a large reading through vibration, even if the microphone is not picking up your voice well.

What the result means

The tap makes a spike, but speech barely moves the meter

The microphone is receiving a loud, sudden sound, but your voice may be too far away, aimed away from the mic, or reduced by processing. Try speaking closer to the mic and compare again with the processing switches off.

The meter moves for speech, but playback is very quiet

The microphone is capturing your voice, but the level may be low or your speaking position may not suit it. Raise the input level in your device settings if that option is available, and check whether the recording is clearer when you move closer. For more quiet-mic checks, see Why your microphone sounds too quiet.

The waveform responds, but your recording sounds muffled or chopped off

The signal is reaching the browser, but sound processing, a blocked opening or a headset position could be affecting speech. If turning off Noise suppression changes the result, the processing may be mistaking parts of your voice for background noise.

The meter stays still for speech and tapping

The test may not have permission, may be listening to the wrong microphone, or may have lost its connection to the device. Check the selected input and browser permission before assuming the microphone is broken.

How to fix it

Speak toward the microphone. Laptop microphones are often along the keyboard, screen edge or case, not necessarily beside the webcam. Headset boom mics should sit near the corner of your mouth without touching it. Remove anything covering the mic opening.
Select the microphone you are actually using. Choose the built-in mic, headset or USB microphone in the test's device list. A tap on the laptop case can reach its built-in mic even when a headset mic is selected, so compare inputs rather than relying on the tap alone.
Check the browser permission. Open the site permissions from the icon beside the address bar and set Microphone to Allow, then reload the page. If you denied permission earlier, change it there before testing again.
Allow microphone access in the operating system. On Windows 11, open Settings › Privacy & security › Microphone, then enable Microphone access and Let desktop apps access your microphone. On macOS, open System Settings › Privacy & Security › Microphone and allow your browser. On iPhone, check Settings › Privacy & Security › Microphone; on Android, check Settings › Privacy › Permission manager › Microphone. Names can vary by Android version.
Check the input level and mute controls. In Windows 11, open Settings › System › Sound, select your microphone under Input and check its input volume and mute state. On macOS, open System Settings › Sound › Input and check the selected device and input level. Also check any physical mute switch on a headset.
Compare processing settings. In the test, turn off Noise suppression, Echo cancellation and Auto volume one at a time. If speech returns when one is off, check the same type of enhancement in your calling or recording app. App settings can override or add to what the browser does.
Reconnect or restart the audio device. Unplug a USB mic and try another port. For a Bluetooth headset, disconnect and reconnect it, then check that its microphone is selected. Close other calling or recording apps and restart the browser. If the problem remains, restart the computer or phone.

When the microphone may be faulty

Test the mic in another app or on another device, using ordinary speech rather than tapping. If speech is still absent or severely distorted across devices, while a different microphone works in the same setup, the microphone or its cable may be damaged. A wired headset that cuts in and out when the cable moves may need replacement. For a built-in laptop or phone microphone, contact the manufacturer or a repair shop, especially if the device was dropped or exposed to liquid.

Why a tap can be misleading

A tap is a short, loud impact. It can travel through a device's case and reach a microphone as vibration, even if your voice is aimed away from the mic or is being reduced by noise processing. A meter can also react to a sound without showing whether speech is clear. Use the recording playback and test from the position where you normally talk to judge whether the microphone is usable.

The Microphone Test runs in your browser, and the short recording stays on your device.