This article will walk you through some possible solutions you can implement to solve any microphone issues while using Skype
Skype Microphone Not Working
There are two different ways that you can make adjustments to your Skype audio input: via the control panel
and in the application
Adjust Skype Sound in the Control Panel
Head to the Control Panel
and click on Sounds and Audio Devices
Go to the Playback
tab, and check that nothing is currently set to mute
Under the Recording
tab, verify that microphone is checked.
Adjust Skype Sound in the Application
and head to Tools
> Audio Settings
Then select Microsoft default device
and uncheck the Automatically adjust audio settings
Update Computer Sound Card Drivers
If Skype still does not recognize your microphone, the problem may be due to the sound card. In this case, you should check the brand and model of sound card and also download the latest drivers.
It may also be useful to go to the manufacturer's website (HP, Dell...) and try to download the latest audio drivers.