Hello.

Found a problem - when recording a video on Samsung S9 + with an external microphone, the background music is recorded on the phone.
At the beginning, I thought that some application was open in the background and when recording, the background sound went from it to Open Camera, but after checking, I made sure that no applications were running in parallel.
Maybe someone knows:
1 How background music appears
2 How to remove it (music)

Thanks.