The museum is not allowed to broadcast live privately, and it must be explained by professionals.
Generally speaking, taking photos is ok, but some special exhibitions are not. When you go in, you will see the description of the museum and some signs. Just pay attention to them yourself. Ask the staff if you don't know. Live broadcast. . It may be possible to broadcast live without making any noise. . But basically museum videos are taboo, after all, many need commercial authorization. The live broadcast of the sound is. . . Better not. Even if there is no staff to see or stop it, it will have some impact on the surrounding tourists. Museums are special public places.