How to set up LLE on Dolphin core?

Firstly let me say that I own both a Wii and GameCube so it is ok for me to have a backup of the bios. Anyways here is my question:

Dolphin has a LLE (Low level emulation) mode for audio playback but I have no idea how to enable it in the retroarch menu. I have the GameCube bios “dsp_coef.bin” and “dsp_rom.bin” in my Retroarch\System folder but I don’t see any option in Retroarch once I’ve loaded the Dolphin core to enable LLE audio mode. I’m also unsure if I need the Wii bios as well to enable LLE mode for wii games.

Any help that could be offered is greatly appreciated.

I don’t think it’s exposed in the core options, but you should be able to do it with a dolphin config ini thing (see the thread on adding 2+ players for how to do it)

Could you link me to that thread? (I have no idea what you’re talking about or where to find it)