Microphone not working? How to fix audio problems

Microphone not working: How to fix audio problems

Few things are as frustrating as a microphone that stops working just when you want to make a video call, join an online meeting, or record a voice message. Fortunately, most microphone problems are easy to fix. In this in-depth article, we walk you step by step through all the possible causes of and solutions to microphone problems.

First checks: The basics

Before we dive into technical solutions, let's start with a few simple checks that fix the problem surprisingly often.

Check the physical connection

If you use an external microphone, check that it is connected properly. With a USB microphone: is the cable firmly in the port? Try a different USB port. With a microphone that has a 3.5mm jack: is the plug in the right port? Many computers have separate ports for the microphone (often pink) and headphones (often green).

Check the mute button

Many headsets and microphones have a physical mute button or slider. Check that it hasn't been switched on by accident. Video calling apps usually have a mute button too; check that your microphone isn't muted in the software.

Restart your device

This may sound simple, but a restart fixes many temporary problems. Close all programs and restart your computer. This resets the audio drivers and can clear up processes that have frozen.

Checking the Windows sound settings

If the basic checks don't solve the problem, it's time to look at the Windows sound settings.

Step 1: Open the sound settings

Right-click the speaker icon in the taskbar at the bottom right. Choose Open Sound settings. This opens the audio settings panel.

Step 2: Check the input device

Under Input you can see which microphone is currently selected. If you have more than one microphone, such as a built-in laptop mic and an external headset, check that the right one is selected. Click the drop-down menu to switch.

Step 3: Test the input level

Below the microphone selection you'll see a bar that responds when you speak. Speak into the microphone and see whether the bar moves. If there is no movement, your voice isn't being picked up.

Step 4: Adjust the volume

Click the selected microphone or Device properties to adjust the input volume. Set it to 80-100% if it is too low. A volume that is too low can mean that others can barely hear you, or not at all.

Advanced sound settings

For more control over your microphone, you can open the classic Sound control panel.

Opening the Sound control panel

In the sound settings, click More sound settings, or type Sound in the Start menu search bar and select Sound settings. In the window that appears, go to the Recording tab.

Setting the microphone as default

You'll see a list of all available recording devices. Find your microphone, right-click it and choose Set as Default Device. A green check mark shows which device is the default.

Adjusting the microphone properties

Double-click your microphone to open its properties. On the Levels tab you can set the volume precisely. On the Advanced tab you can adjust the quality. If apps can't use the microphone, it sometimes helps to turn off exclusive mode.

Listening to the microphone

On the Listen tab you can check Listen to this device. This plays whatever the microphone picks up through your speakers or headphones, so you can test whether the microphone works. Don't forget to turn this off again to prevent echo.

Checking the privacy settings

Windows has privacy settings that can block apps from accessing your microphone. This is a common cause of microphone problems.

Opening the privacy settings

Go to Settings from the Start menu. Click Privacy & security and then Microphone. This is where you manage which apps are allowed to use your microphone.

Turning on microphone access

Check that Microphone access is turned on. Without this setting, no app at all can use your microphone. Scroll down to see which specific apps have access. Make sure the app you want to use, such as Teams, Zoom or your browser, is turned on.

Giving desktop apps permission

At the bottom of the page there is an option to Let desktop apps access your microphone. This must be turned on for traditional Windows programs that don't come from the Microsoft Store.

Updating or reinstalling audio drivers

Outdated or corrupted drivers are a frequent cause of audio problems. Updating or reinstalling the drivers can help.

Opening Device Manager

Right-click the Start button and choose Device Manager. You can also search for Device Manager in the Start menu.

Finding the audio devices

Expand the Audio inputs and outputs category by clicking the small arrow. Here you'll see your microphone and other audio devices. Expand Sound, video and game controllers as well.

Updating the driver

Right-click your microphone or audio controller and choose Update driver. Choose Search automatically for drivers. Windows searches online for the latest driver.

Reinstalling the driver

If updating doesn't help, you can reinstall the driver. Right-click the device and choose Uninstall device. Restart your computer; Windows automatically installs a new driver.

Fixing problems with specific apps

Sometimes the microphone works in general but not in one specific app. Here are tips for commonly used programs.

Microsoft Teams

Open Teams and go to Settings via the three dots at the top right. Click Devices. Select the right microphone under Microphone. Use the test button to check that it works. Also check that you aren't muted during a call.

Zoom

In Zoom, click the gear icon for Settings. Go to Audio. Select your microphone under Microphone and click Test Mic. Speak and check whether the bar moves. Adjust the volume if needed.

Browser-based apps

If you make video calls in a browser such as Chrome or Edge, the browser may ask for permission to use the microphone. Watch for pop-ups asking for permission and click Allow. You can also check the site settings by clicking the padlock to the left of the URL.

Common problems and solutions

Here are specific problems that come up often, along with their solutions.

Others can't hear me, but I can hear them

This points to a problem with your microphone, not with audio playback. Check that the right microphone is selected. Test the microphone in the Windows settings. Check the mute button in the app and on your headset.

There is a lot of noise or echo

Try lowering the microphone boost in the sound settings. Keep the microphone farther away from the speakers to prevent feedback. Use headphones instead of speakers. Close windows and doors to reduce background noise.

The microphone squeals or makes high-pitched tones

This is usually feedback caused by the microphone picking up sound from the speakers. Use a headset or earbuds. Turn down the speaker volume. Turn on echo cancellation in the settings of your video calling app.

The microphone stopped working after a Windows update

Major updates can reset audio settings. Check that the right microphone is selected. Check the privacy settings again. Update the audio drivers as described earlier.

Extra tips and prevention

These tips help you prevent future problems and get the best audio quality.

Keep drivers up to date

Check for driver updates regularly, especially after major Windows updates. Your computer manufacturer's website often has specific audio drivers.

Invest in a good microphone

The built-in microphone of a laptop is often of mediocre quality. A simple USB headset or external microphone can make a big difference in sound quality.

Test before important calls

Always test your microphone before you start an important video call or online meeting. Most video calling apps have a test function in their settings.

Keep the microphone clean

Dust and dirt can affect sound quality. Gently blow away dust or use a soft brush to keep the microphone clean.

Frequently asked questions

Why does my microphone work in one app but not in another?

This is usually due to privacy settings or app-specific configuration. Each app may need its own microphone access through the Windows privacy settings. Under Settings, Privacy & security, Microphone, check whether that specific app has permission. Also check inside the app itself that the right microphone is selected in the audio settings, because each app remembers its own preference.

My Bluetooth headset microphone isn't recognized. What now?

Bluetooth headsets can be tricky because they have two audio profiles: one for high-quality playback and one for communication with the microphone. Make sure the headset is paired and connected correctly. Go to the sound settings and specifically select the headset as the input device. Sometimes you need to select the hands-free profile instead of the stereo profile. If that doesn't work, remove the Bluetooth pairing and pair the headset again.

Can I improve the sound quality of my built-in laptop mic?

The physical quality of a built-in microphone is limited, but you can make a few improvements. Speak closer to the laptop for a stronger signal. Reduce background noise by working in a quiet room. Use noise suppression in video calling apps if it's available. However, consider an external USB microphone or headset if you make calls or record regularly, because the difference in quality is noticeable.

How do I test whether my microphone is really broken?

To determine whether your microphone is defective or whether it's a software problem, follow these steps. If it's an external microphone, try it on another computer. Use the Windows Sound Recorder app to make a recording and play it back. Check in Device Manager that the microphone is listed without error messages. Test with several apps to rule out app-specific problems. If the microphone doesn't work anywhere and you've tried all the software solutions, the microphone is probably defective and needs to be replaced.