Meaning, function.

1. Meaning. Background music, also known as accompanying music and soundtrack, usually refers to a kind of music used to adjust the atmosphere in TV series, movies, animations, electronic games, and websites. Special effects music is some relatively short ambient sounds, such as some funny cartoons. Shouts, thunder, laughter, etc.

2. Function. Background music is inserted into dialogue to enhance emotional expression and achieve an immersive experience for the audience. Special effects music is added to the noise or sound on the vocal cords to enhance the realism, atmosphere or dramatic message of a scene. .