[HELP] built in mic ideapad 330 15ikb dont work con chrome/firefox / can't mute separate channels in audiomidi setup.

[HELP] built in mic ideapad 330 15ikb dont work con chrome/firefox / can't mute separate channels in audiomidi setup.

* Hardware: *

CPU: i3 8130u

* GPU: hd620.

* RAM: 12 gb ddr4

Motherboard/Laptop model: lenovo ideapad 330 15 ikb

* Audio Codec: alc230 with layout -20

Ethernet Card: rtl8111

Wifi/BT Card: (if available) intel ac3165

* What part I got an issue with:

hello, I have a problem with the microphone of the lenovo ideapad 330 15ikb, the problem is that the microphone in mac is recogniced as stereo mode, when in reality it is a mono microphone, which makes applications like chrome or firefox and the whatsapp application not work Correctly, in system aplications like recording app r safari the microphone works well, but in the chrome or whatsapp dont works,

in other posts

https://github.com/Ab2774/Lenovo-IdeaPad-320-14-IKB-Hackintosh/issues/3

https://www.reddit.com/r/hackintosh/comments/kfqrgu/fixing_mono_mic/

with this same laptop they say that it is solved by silencing one of the microphone channels from the audio midi configuration, but it does not let me deselect any of the channels, is there any way to enable a microphone channel to be deselected from audio midi configuration?

https://preview.redd.it/byfx0sfhcq281.png?width=1238&format=png&auto=webp&s=f74ab163ba07b43d0c607010dbe82e8beb36278d

https://preview.redd.it/yvji81ghcq281.png?width=1223&format=png&auto=webp&s=523229ad4527bfa83bda1f7f3d5db02a47e3ee6f

* What files/config I am using: * Extra Info: What guide/tool followed: https://www.youtube.com/watch?v=Xkh03pPXcIY . (i use the efi folder provided in this video and make almost all works perfect, except one little thing the mic)

submitted by /u/BoringMongoose9418
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