Image: istockphoto.com Hard objects, such as metal and stable Wooden tables and chairs, don't take up audio so that noise can bounce all over a room. Swapping hard chairs for upholstered chairs and overstuffed sofas should help dampen audio waves and continue to keep them from echoing within the room.  https://headshotphotography24567.getblogs.net/67356513/the-fact-about-double-glazing-alternative-that-no-one-is-suggesting