Mic is not working on 20.04 mate with Raspberry Pi 4 Model B

Hi,

I am using Ubuntu 20.04 LTS mate for the Raspberry Pi 4 Model B, Audio out with HDMI is working fine but when I am using 3.5 mm jack mic it is not detecting in my system for the audio input, please help me to resolve an issue.

Regards,
Viral

The 3.5mm jack is for video/audio out -- I dont think you can provide audio input. Maybe you can connect a usb mic to pi4 https://www.amazon.com/s?k=usb+audio