Ho wow, the sample video shows incredible results, I'd love to read more about how to configure it with my own laptop and microphone. Settings ought to be different for each laptop model, right ?
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Windows drivers (Realtek?) likely load EQ coefficients into the codec, while the Linux one doesn't.
There are some tools and info here on how to get the coefficients you need (it's Hackintosh-oriented, but the basic principles apply):
https://github.com/acidanthera/AppleALC/wiki/Dumping-process...