2, don't stick tiles on the ground, try to use wood or carpet.
3. The sound insulation material adopts perforated wooden boards, including dragon skeleton, sound-absorbing cotton and perforated wooden boards from inside to outside.
Note that the reverberation time of the recording studio is 0.3-0.5 seconds. Secondly, the noise of the car body should not be too loud, mainly in the sound insulation of doors and windows to the outside world.