If you close your eyes right now in this room, you're aware of the size of the room from the reverberation and the bouncing of the sound off the surfaces; you're aware of how many people are around you, because of the micro-noises you're receiving.
Sekiranya anda pejamkan mata sekarang, di bilik ini, anda akan dapat rasakan saiz bilik ini dari gema dan pantulan bunyi permukaan-permukaan yang ada. Dan anda akan perasan berapa ramai orang di sekeliling anda disebabkan oleh bunyi-bunyi mikro yang anda dengar.