amplifier-filter

例句：

1. 1. The amplifier is designed to boost the sound quality of the music.
   放大器旨在提升音乐的音质。
2. 2. The filter is used to remove noise and interference from the signal.
   滤波器用于从信号中去除噪声和干扰。
3. 3. In this project, we need to use an amplifier and a filter to achieve the desired effect.
   在这个项目中，我们需要使用放大器和滤波器来实现预期的效果。