Correct

消音

/ xiāoyīn / 
Strokes

Definition

to silence

Example

As a Verb

deaden a sound/noise; diminish/eliminate/muffle a sound

1
Zhè
这
pán
盘
cídài
磁带
xiāo
消
le
了
yīn
音
  
。

The recording on the tape was erased.