Identification of sound processes

Hello all,
In my Windows 10 operating system, four sound processes are identified under the same name
(which are started automatically after system startup)
"C:\Program Files\Realtek\Audio\HDA\RAVCpl64.exe" -s
"C:\Program Files\Realtek\Audio\HDA\RAVBg64.exe" /ASC
"C:\Program Files\Realtek\Audio\HDA\RAVBg64.exe" /CT
"C:\Program Files\Realtek\Audio\HDA\RAVBg64.exe" /FORPCEE4
*htt*ps://i.imgur.*com/3CTO2JG.png

More information:
*htt*ps://i.imgur.*com/cnM9SDK.png
*htt*ps://hastebin.*com/yonecuteqe.diff

can someone please tell me why must the same three processes with different parameters have to be run?
I couldn't find what those parameters meant at all :-/

thanks.

PS: I can't send links (remove stars)