I have found that I was correct. The KB4515384 windows update had affected the game's audio, and by uninstalling it the audio has been fixed. I don't know how that happens, but it does. So if anyone has been having the same problem, uninstall this update. If you haven't updated yet, DO NOT UPDATE! This update not only affects minecraft's audio, but can affect other audio within the computer's system as well.
I have found that I was correct. The KB4515384 windows update had affected the game's audio, and by uninstalling it the audio has been fixed. I don't know how that happens, but it does. So if anyone has been having the same problem, uninstall this update. If you haven't updated yet, DO NOT UPDATE! This update not only affects minecraft's audio, but can affect other audio within the computer's system as well.