The phrase "background distractions" refers to things happening around you that can divert your attention or make it difficult to focus on a task. Full definition
If you're playing white noise, you will be able to ignore other voices, annoying sounds, and background distractions much more easily. (whitenoisemagic.com)
It's probably best to keep background distractions away from your first photo, so that you take center stage. (eharmony.com)
The film doesn't seem to have any confidence in the words, it has to continually project background distractions. (timeout.com)