I cannot hear voice chat

No, I cannnot, and I will not hear voice chat. i don’t know what the problem is. I see the icons flaring up, but hear absolutely NOTHING. How can I live with myself without knowing how my teammates insult themselves this time!
This game lacks its essence when I see a DPS player joining oice chat, expect that player to have a soothing voice and only hear a squeaky child demanding his own pocket mommy.

Genuinely, I can’t hear voice chat. Or they all just breathe into their mics. But that I doubt.
I already checked the acoustic settings of the game and I don’t have it muted. So where is the problem now?