聚光灯只能照亮舞台的一部分；同样，“定点音效”也能把声音投射到指定的区域。

A spotlight lights up only one section of a stage; similarly, "spotsound" creates a circle of sound in on targeted area.

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目前，该技术拥有多种用途，实际使用于比赛、博物馆和图书馆，在特定区域提供音频聚光灯系统，同时又能在很大的空间内保持安静。

The technology has several practical USES currently in play — museums and libraries can keep large Spaces quiet while offering Audio Spotlight systems in specific areas.

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光线在按照聚光灯的角度和范围所定义的一个圆锥区域照射所有物体。只有在这个区域内的对象才会受到光线照射。

A light that shines everywhere within a cone defined by Spot Angle and Range. Only objects within this region are affected by the light.

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