@Geez Hi. When you open doors in this building, the sound of opening of a door is reproduced. The position of a source of a sound is near behind the back, either with Leva or from the right.
It causes a feeling that someone near you opens doors too.

https://youtu.be/Zejd6FTp2O4
Listen to a sound, a sound always where that is near, behind the back or far.
It is reproduced on all buildings of this type.