pre-emphasis

例句：

1. 1.In digital communication, pre-emphasis is used to compensate for the distortion caused by the transmission medium.
   在数字通信中，预增强用于补偿传输介质引起的失真。
2. 2. The engineer applied pre-emphasis to improve the signal's clarity and reduce noise interference.
   工程师应用预增强来提高信号的清晰度并减少噪声干扰。
3. 3.Pre-emphasis is a technique that can significantly enhance the quality of audio signals.
   预增强是一种可以显著提高音频信号质量的技术。