Realtek mic not working

[MomodouSing]

I have been doing a lot of video calls recently but for some reason, my laptop cannot hear my voice. Even when I try to test the voice record option it does not hear me. I do not use any headphones to talk, I am just trying to talk through my laptop's input. I've never used the feature until this year and the laptop is less than 2 years old. The setting is on the realtek input for sound. How can I get this to work so I can speak through my laptop? 

[Echo_Lake]

@MomodouSing

Thank you for posting on HP Support Community.

Don't worry as I'll be glad to help, I have a few troubleshooting steps we could try to fix the issue:  
Let's uninstall and install Realtek High-Definition Audio Driver.

1. In Windows, search for and open Device Manager.
2. Double-click Sound, video and game controllers.
3. Right-click the sound device and select Uninstall.
4. Click here: https://support.hp.com/in-en/drivers/desktops to download the new audio driver for your computer. 
5. Test for sound. If the Mic problem persists  

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.