Physically, the resistor is effectively the source of noise. 從物理上來說,電阻器等效於雜訊源。
Using the microphone array system based on beam forming technology,the noise emission property of a motorcycle was investigated in detail. 利用基於波束成形的遠場聲陣列雜訊源分析技術研究了摩托車輻射雜訊的聲源特性。