1Noise, usually unpleasant; unwanted background sound or a mix of miscellaneous sounds.
古い冷蔵庫がうるさい雑音を立てている。
The old refrigerator is making a loud, unpleasant noise.
隣の工事の雑音で勉強に集中できない。
I can't concentrate on studying because of the construction noise next door.
エアコンから変な雑音がするので修理を頼んだ。
The air conditioner was making a strange noise, so I asked for it to be repaired.
2Interference or static in a signal or recording — e.g. poor radio reception, or unwanted noise picked up while recording.
ラジオに雑音が入って局が聞こえない。
The radio has static and I can't hear the station.
録音した音声から雑音を除去するソフトを使った。
I used software to remove the noise from the recorded audio.
3(informal) Gossip or irresponsible criticism — talk not worth taking seriously.
彼の周りにはいつも雑音が多いが、気にしないほうがいい。
There's always a lot of gossip around him, but it's better not to pay it any mind.
ネット上の雑音に振り回されないでください。
Don't let yourself be swayed by the noise on the internet.