You can typically resolve low USB microphone volume in Windows 11 by adjusting the Input volume (gain) in the Windows Sound settings and, if available for your microphone, using the hidden Microphone Boost setting.
Here’s a step-by-step guide on how to check and adjust these settings, along with other troubleshooting steps.
1. Adjust Input Volume (Gain) in Settings
The first and most direct way to increase volume is through the main Windows Sound settings.
- Go to Settings by pressing $\text{Windows} + \text{I}$ or right-clicking the Start button and selecting Settings.
- Navigate to System > Sound.
- Scroll down to the Input section and click on your USB Microphone to open its properties.
- In the Input settings, look for the Input volume (or just Volume) slider.
- Move the slider to the right to increase the volume, typically setting it to 90 or 100.
- Tip: Speak into the microphone and watch the blue bar under the Input volume section. If it moves but is very low, increasing the volume should help.
2. Check and Use the Microphone Boost (Legacy Setting)
For some USB microphones, especially those that use generic drivers, an additional gain setting called “Microphone Boost” may be available in the classic Control Panel Sound settings.
- Open the Run dialog box ($\text{Windows} + \text{R}$) and type mmsys.cpl, then press Enter. This opens the classic Sound control panel.
- Click on the Recording tab.
- Right-click on your USB Microphone in the list and select Properties.
- Go to the Levels tab.
- You will see the Microphone volume slider (which you set in the first section).
