Hello, I've been using Arch Linux for at least a week, so I know almost nothing about it. I installed the programs I normally use, like Discord, etc. The problem is that when I'm on a voice call with my friends, I can't hear them, and they can't hear me. In the Discord settings, it shows something like "Default Input Device" and "Default Output Device," which doesn't tell me much. I've also had problems recently. Since yesterday, I've been having issues with some Steam games, like Half-Life 1 and Sven Co-Op; oddly enough, both are GoldSrc.

I use ALSA for almost everything related to sound, but suddenly one day 'Master' stopped working. When I boot up and log in, I have to use "alsamixer" to change the sound card and increase the volume. Also, since things just stopped working out of nowhere, I restarted the PC, and the "alsamixer controls" list changed, adding more than 20 devices and inputs, etc.

Please excuse any grammatical errors or strange things, as I don't know how to write or speak English and used a translator.