Background music (BGM), also known as soundtrack, usually refers to a kind of music used to adjust the atmosphere in TV series, movies, animations, video games, and websites, and is inserted into conversations , can enhance the expression of emotions and achieve an immersive feeling for the audience. In addition, the music played in some public places (such as bars, cafes, shopping malls) is also called background music.

Background noise, English name: background noise. Also known as background noise, it refers to all interference that has nothing to do with useful signals in the generation, inspection, measurement, and recording systems. The total system noise, independent of the presence or absence of radio interference from power lines or substations, is called background noise. In environmental impact assessment (EIA), background noise refers to the general term for all noise other than the research object.

Two completely different concepts.