Question

dubbing studio means what

Answer 1

hey dear your answer is here

it means any film is shooted in a particular language.

now to release it in different languages first it should be dubbed and recorded in different languages in studio

e.g English film is first recorded in hindi by voice of different people for different characters in film.
this is called dubbing studio where it is dubbed

Answer 2

a recording studio specialized facilities for sound recording,mixing and audio production of instrumental and vocal musical performances, spoken words and other sounds