Enemies extremely loud through walls

i was playing mystery heroes on junkertown. on attack on third point, i kept spawning around the same time as someone on the enemy team. i could hear their character from their spawn every single time as if they were right next to me. i thought at first the enemy was close behind us before i realized i was able to hear their spawn. i only noticed this issue when i was in my own spawn. it could have been coincidence because we were spawning at roughly the same times, but i also only heard the same enemy player every time. i stopped playing after this game so i didn’t see if it continued on other maps or in other modes.