extraneous noise

常见例句

Working on a document in a window and want to get rid of all the extraneous background noise?
想丢开干扰在一个窗口中专心弄一个文档？
The inability to deal with sounds, such as ah, er, ooh, uh or extraneous noise, causes more errors than other factors.
不能处理诸如阿噢、呜等发音或额外的噪声，（这些声音或噪声）会比其它因素引起更多的错误。
dj.client.iciba.com
Although these methods can control and reduce the noise in most measurements, some techniques just prevent noise from entering the system, whereas others remove only extraneous noise from the signal.
虽然这些方法在大多数测量中能控制和减少噪声，但是一些技术只是防止噪声进入系统，而其他只是去除信号中的外来噪声。

Then they found a better way to mount it in the driver's helmet and added signal processing to cancel out extraneous noise.
FORBES: Racecar Drivers To Use Bell Labs Microphone
They both appear to be singular talents with natural leadership skills, off-the-charts intelligence, and an innate ability to tune out the extraneous noise and focus on what is important.
FORBES: Peyton Or Not, Colts Need Luck
As before, its got a trio of electrodes for sensing brainwaves, a NeuroSky chip for filtering out extraneous electrical noise and Bluetooth 4.0 for offloading data wirelessly.
ENGADGET