Modular sound-proofed cabin

A modular soundproof cabin, comprising a perimeter wall having perimeter panels, an upper ceiling having ceiling panels and a lower floor having floor panels, wherein each of the panels have acoustic insulation properties, wherein the perimeter panels include frames located on an inner side thereof, comprising intermediate horizontal struts provided between horizontal lines of the perimeter panels, and end horizontal struts provided between a perimeter wall and the upper ceiling and the lower floor;

• comprising first mechanical fixation means located, at least, between the frames and the intermediate horizontal struts, and between the ceiling panels and the floor panels and the end horizontal struts,
• wherein each of the horizontal struts are divided into segments that comprise end dovetails, wherein each segment overlaps, at least, a connection between horizontally adjacent perimeter panels,
• further comprising vertical struts laterally inserted straight between the adjacent perimeter panels, wherein the vertical struts comprise a solid inner square portion and an outer soundproof portion which is recessed with respect to lateral edges of the square portion,
• wherein the outer soundproof portion projects up and down from the inner square portion a first length overlapping the intermediate and end horizontal struts, and
• wherein the perimeter panels project from the frames a second length overlapping the intermediate and end horizontal struts and the solid inner square portion.