Sometimes it happens that your computer uses two or more sound cards, and often they are from different manufacturers. The most ubiquitous in the case when there are built-in map and HDMI video, and in the case of different manufacturers've just
options module_name_1 index = 0 options module_name_2 index = 1
But if the sound card using one and the same module? Then it is possible to do so
options snd-hda-intel id = PCH index = 0 options snd-hda-intel id = HDMI index = 1
As you can see it is very simple.