雑音

1. Origins, structure, and basic meaning

• Structure: 雑音(ざつおん) means unwanted sound mixed with and interfering with what one wants to hear.
• Basic usage: It covers radio interference and can figuratively refer to surrounding comments or judgments one chooses not to prioritize.

2. Common pitfalls and similar expressions

• A different emphasis from 騒音
  • 騒音(そうおん) emphasizes noise that disturbs daily life or the environment. 雑音 focuses on interference mixed with a desired sound or message, so their uses can overlap.