Even if you can get the best materials available for soundproofing, it will not be of much use unless they are properly put in position. Therefore, they should be installed during the construction of the house itself. Although you can still derive benefit of the sound deadening material once the construction is over, it is sure that it won’t be as efficient as in the pre-construction phase.
Insulation is a way of blocking the undesired sounds that come from outside. While you can make your interiors soundproof by using noise cancelling curtains, the best place to start is the floor. The floor insulation is an inexpensive choice. It also offers an efficient soundproof between your floor and the adjacent building or floor.
You can make your windows impervious to sound by using a glass type with a special quality. The glass panels that efficiently block the external noise are occupied ideally with dense sealing. You can use blinds or acoustic ceiling panels to block the sound that may still make its way into your room. There are various other types of material that are efficient sound blockers.
It is to be kept in mind that soundproofing is different from that of sound absorption. Absorption that type of sound improvement wherein the effect of sound is deadened in a conference room, home theatre or recording studio. It limits the entry of other noises and maintains only the positive sounds in the room. In another technique of soundproof, people go to construct an additional stratum of wall in the room, with a bit space in between. This space is the main absorber of sound and thereby improving the sound quality diffusing in the room. You may also use a sound proof booth in case you feel the requirement.