Question How to fix Microphone that makes humming noise but when touching pc case it stops?

Oct 7, 2019
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Hello I have a problem with my microphone. When I touch the case it stops and I changed my power cables to other extension cord but nothing happens. I don't know what to do I have new motherboard and also when I connect my microphone jack into front panel of pc it doesn't detect it but when I push the headphone jack up it shows as detected. maybe that's why microphone is not working properly? PSU is new 650watt.
Here is the link so you can hear what it sounds like: View: https://soundcloud.com/arm-ns-ku-eravijs/mic-humming/s-qMX4f