Answer:
see below
Step-by-step explanation:
You would hear very little to no sound in a soundproof environment. Making a space or building as acoustically soundproof as feasible prevents sound from escaping through the walls or ceiling. This implies that any outside noise, including that produced by vehicles, construction equipment, or other people, would not be noticeable. Additionally, materials used for soundproofing are utilized to stop sound waves from passing through a room's walls and ceiling. Although sound would be substantially diminished or muted, you would still be able to hear yourself and whatever else you say or do in the space.
The sound of electrical equipment, your own breathing, and the beat of your heart may all be heard even in a soundproof room, so it's crucial to keep that in mind while trying to create a perfectly silent space.