But then the blue circle disappears, and in its place—bzz!

瑞秋：但是随后蓝色圆圈消失了，取而代之的是——bzz！

The sonic glasses take a video feed right in front of you and turn that into a sonic landscape, so as things move around, and get closer and farther, it sounds like " Bzz, bzz, bzz."

声波眼镜在你面前录像，并将录像变成声波地形，当物体靠近，远离，听上去就像“嗞嗞嗞”的声音。