This repo include all patches to get internal microphone working properly for Conexant CX20751/2 on Hackintosh. These patches all require CodecCommander.kext to be installed to /Library/Extensions.
SSDT-CX20752.dsl is also included as an alternative to CodecCommander.kext patch, but it doesn't seem to work on Mojave. If anyone knows what's wrong, please let me know.
python patch.py [PATH_TO_CodecCommander.kext]