You can look at the Path of Exile playerbase to see that after a while, the loot filter sound is the only thing a player wants to hear.
If that’s absolutely impossible, please put the gold sound separately in the sound settings. As it is, if I don’t want to hear all the thousand zombies, I can’t hear gold. And if I don’t have the loot filter sounds, then that’s the only good sound.
edit: if you are desperate and play offline I found a mod that does it (in a very simplified way) but I haven’t tested it because I want the online functionalities