this tab shows you various recording devices such as microphones atteched to your computer
Answers
In Windows, search for and open Troubleshooting.
Under Hardware and Sound, click Troubleshoot audio recording.
Hardware and sound selections
Select the device you want to troubleshoot, and then click Next to start the troubleshooter.
If a recommended action displays, select Apply this fix, and then test the device.
Step 2: Check microphone or line-in device status
Check the device status and settings, and then test for an audio signal in Windows sound settings.
In Windows, search for and open Control Panel.
Click Hardware and Sound, and then click Manage audio devices.
Click the Recording tab and note the status of each device.
NOTE: Available devices differ depending on the computer model and what is currently connected.
Recording tab devices
Microphone port is working and set as Default
Line In device is working
Digital In (S/PDIF port) is working
Stereo Mix (Software mixer) is disabled
If multiple microphones or line-in devices are available, select the device you want to use, and then click Set Default.
If the device contains a small circle with an arrow pointing down, the device is disabled. Right-click the device, and then select Enable.
Click the device name, click Properties, and then click the Levels tab.
Image of Microphone Properties window with Levels tab highlighted
Adjust the level slider to 75.
Look for any muted icons , and then click the icon to unmute the device.
If Microphone Boost is available, adjust to +20.0 dB, and then click OK.
Speak into the microphone or start the line-in audio device, and then view the gray bars next to the device name on the Recording tab