noise generator for signal channel

例句：

1. 1. The noise generator in the factoryis causing a lot of problems.
   工厂里的噪声发生器造成了很多问题。
2. 2. The noisegenerator was designed to reduce background noise inrecording studios.
   噪声发生器被设计用来减少录音棚的背景噪音。
3. 3. The noisegenerator was responsible for producing high-frequencysounds that could be heard from a distance.
   噪声发生器负责产生高频声音，这些声音可以从远处听到。