How to Adjust Microphone Gain in Windows 11

Microphone gain in Windows 11 is the input level that Windows applies to your microphone before apps receive the sound. Windows shows it as an input volume slider in Settings. Some audio drivers also add a separate boost control in the classic Sound panel. If the gain is too low, people on calls struggle to hear you. If it is too high, your voice distorts on louder words and background noise becomes more noticeable.

Before you start

• Connect the microphone and confirm that Windows lists it as an input device. USB and Bluetooth headsets can take a moment to appear after you connect them.
• Find out which microphone your app actually uses. Laptops, webcams and headsets often each provide their own microphone, and adjusting the wrong one has no effect.
• Check that microphone access is turned on under Settings > Privacy & security > Microphone. If access is blocked, apps receive no sound at any level.
• If your calling or recording app adjusts the microphone level automatically, it may undo your changes. Keep this in mind while you work.
• Gain is a local Windows setting. Changing it does not require an internet connection or an online service. Software from the microphone's manufacturer may add its own separate controls.

Write down the current slider values before you change anything. That way you can return to your starting point if the new setting sounds worse.

Step-by-step instructions

Set the input volume in Settings

• Right-click the speaker icon on the taskbar and choose Sound settings. You can also open Settings > System > Sound.
• In the Input section, choose your microphone, then select it to open its properties page.
• Move the Input volume slider in small steps. Raise it if your voice is too quiet and lower it if your voice distorts.
• Next to Test your microphone, select Start test. Speak at your normal volume and distance, then stop the test. Windows shows the result as a percentage of the total volume.

Labels and layout differ slightly between Windows 11 releases. If you cannot find the slider where described, use the classic Sound panel method below, which offers the same level control. Some properties pages also have an audio enhancements option, which can change how loud and how processed your voice sounds. Leave that option unchanged unless you are troubleshooting.

Use Microphone Boost in the classic Sound panel

• In Settings > System > Sound, scroll down to the Advanced section and select More sound settings.
• Open the Recording tab, select your microphone, and choose Properties.
• On the Levels tab, set the Microphone slider. If your driver supports it, a Microphone Boost slider also appears here, usually in fixed steps.
• Select Apply, then OK.

Boost amplifies everything the microphone picks up, including hiss and room noise. Set the main level first and add boost only if your voice is still too quiet. Many USB microphones and headsets do not offer a boost control at all. This depends on the driver and does not mean anything is broken. The Advanced tab of the same dialog has a Default Format setting for sample rate and bit depth. That setting does not change loudness, so leave it at its current value unless a specific app requires a different one.

Check the output

Run the microphone test in Settings and speak the way you would on a call. The level bar should rise with your voice and drop between sentences. If the result stays low, raise the input level. If normal speech pushes the bar to the top, lower the input level.

A level meter shows only how loud the signal is, not how good it sounds. To judge quality, make a short recording, for example with the Sound Recorder app. Play it back through headphones or your usual output device. Listen for distortion on louder words, hiss, and background noise in the pauses. Then test once more in the app you plan to use, because it may apply its own volume or noise processing on top of the Windows setting.

With Bluetooth headsets, the microphone often runs in a hands-free mode during calls, and that mode limits sound quality. Raising the gain makes the voice louder but cannot restore quality that this mode removes.

Common problems and next steps

The level changes back on its own

Some calling apps adjust microphone volume automatically. Look for an automatic microphone adjustment option in the app's audio settings and turn it off if you want to set the gain manually. Audio software from the manufacturer can also override the Windows level, so check its settings too.

There is no Microphone Boost option

Whether boost is available depends on the driver. Check whether the manufacturer provides audio software or an updated driver with a gain control. Many USB microphones and audio interfaces have a physical gain knob, and on those devices the knob is usually the right place to set the level.

The microphone is still too quiet at maximum

First confirm that the app is using the same input device you adjusted, and that no hardware mute switch is on. Move closer to the microphone, since distance has a large effect on input level. If the properties page offers audio enhancements, try switching them off or on and test again.

Your voice distorts or background noise is too loud

Lower the boost before lowering the main level. Moving closer to the microphone and reducing gain usually captures less room noise than raising gain from farther away. For noise that remains, use the noise suppression option in your calling app if it has one. If a change makes things worse, return the sliders to the values you wrote down at the start.