「Film Score」与「Soundtrack」有何区别？ - 知乎 A soundtrack can be recorded music accompanying and synchronized to the images of a motion picture, book, television program or video game; a commercially released soundtrack album of music as featured in the soundtrack of a film or TV show; or the physical area of a film that contains the synchronized recorded sound
原声配乐（OST）和背景音乐（BGM）的异同在哪里？ - 知乎 - Original Sound Track（原创音乐专辑、原声带）一词，其字汇来源自“原声音乐”（Soundtrack），原意指将电影的配乐以光学方式纪录于影片胶片上的音轨录音（Sound-on-film，又常缩写为SOF）技术，以便与独立将声音纪录于唱片碟盘上的影音分离（Sound-on-disc）技术作区