This paper analyzes the mechanism of noise generation, and indicates that the source of noise generated from a resonating saw blade is the key source for the noise generation.

分析了圆锯片噪声产生的机理，同时指出共振噪声是圆锯片噪声的重要组成部分。

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The Agilent 81150a pulse function arbitrary noise generator provides versatile waveforms for pulse generation as well as noise generation for stress testing.

安捷伦81150 A脉冲函数任意噪声发生器可为脉冲发生提供多用途波形，还可以为压力测试提供噪声发生。

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There are no plans to de-grunt top grunters it appears Sharapova and Azarenka's grunts will be grandfathered in but there's a push to squelch the noise at younger levels, and produce a quieter next generation of players.

WSJ: Jason Gay: Confessions of a Tennis Grunter