Hearing in the Fog of War

I can hear the enemy people recalling in the Fog of War.

Situation: I was against a Kled in One-For-All as Lux in bottom lane and he was recalling in lane beside the their first turret. I threw my Q and ran away therefore covering him of the Fog of War, but I was still close enough (close to the second bush nearest to their turret) to see where he was on my screen, and I can still hear the sound of recalling animation.

Edited: It was a Kled not a Gnar. Edited: I don't know if this is relevant but it was with an Elementalist Lux skin, since its new maybe?