The device is similar to noise cancelling headphones.

该设备类似于降噪耳机。

Noise cancelling headphones usually do away with low pitches.

降噪耳机通常用来消除低调噪音。

"Noise cancelling depends on specific positions. You're not going to get that cancelling," he said.

他说：“噪音的消除取决于特定的位置。喇叭声是消不掉的。”

We successfully apply BP network in noise cancelling. The effect of practical application is satisfactory.

本文采用BP网络实现自适应噪声相消，实际应用效果是良好的。

In this paper, we focus on the application of adaptive filtering algorithms to channel estimation and noise cancelling.

本文主要研究几种自适应滤波算法在信道估计和噪声消除中的应用。