A frequently asked question of musicians is how to insulate a sample space effectively against noise and unpleasant noise. In this issue must are two things distinguish :
Once it is: in the sound insulation in the sense a noise reduction from the inside out to protect the neighbors, or vice versa from outside to inside to protect against unwanted background noise at sound recordings. In the foreground it is primarily the extent possible, noise elimination.
Secondly, there is demand for the attenuation of reflection with the aim of improving sound in the interior to increase as the recording quality or intelligibility. It is, however, to create a balanced sound image with as good preservation of sound indoors!
So these are two entirely different claims .
The desired return loss is achieved by the skilful and moderate use of absorbers, and soft foam mats in a pyramidal and in a very limited way and with the typical egg cartons. This is however only the higher frequencies. Especially foams act only at frequencies of around 1-2kHz. These represent but in terms of the neighbors is not a problem because they do not penetrate the wall, so for sound insulation foam mats are unfit. The disturbing bass, however, which is perceived very well outside their rooms, will be reduced only by special broadband absorbers and this is not even complete. Such absorbers have therefore only the task of the interior to provide balanced sound. Further action in this regard diffusers the sound reflecting non-specific, rather than destroy it.
foams, carpets and curtains have no real impact to the outside of the insulation!
The only way to prevent noise pursuing a strategy to penetrate the wall and out of the room is to build very thick and hard or to work with additional partitions. Depending on the thick brick walls, or other interior fittings are, the more impenetrable it be for sound vibrations, since the mass movement must be brought into, before they then turn the air on the other hand, stimulate. Decisive here is the so-called basis weight of the material: even relatively strong sound pressure, a heavy and thick wall moves only slightly, sodas and the Run is stimulated only slightly behind. Unfortunately, it is structurally here in retrospect hardly change!
means to insulate an existing room afterwards, therefore, to recover an additional wall and separate the two resulting air spaces completely. To be added to create a separate screened area must be completely dense inner shell. For example you can set up through typical drywall construction a framework type of strips of wood or aluminum profiles, which in turn Chipboard or plasterboard wear. The profiles should be decoupled from the floor and touching the clad plates, the outer wall is not logical. Of course we then need an additional door and window gfs in the original window. These should include well-sealed, ideally, practical! The best way is to old and new doors and fixed optical directly against each other and add a little foam between the frame. The aeration, which are found in small compact shell areas which do not meet the entire room, usually is not necessary: The volume is correspondingly larger and so is in the breaks just passing through 2 windows revealed. The lighting must of course be moved into the interior, as well as electrical connections.
The entire sound insulation effect acts in two ways: First, there are now two walls, through which the sound come through it, and second because of delayed wave reflections at the walls of two spatially overlapping and also to enable cancellation of the same. Moreover, the gap is partially filled with insulating material, to ease the air contained therein. Only the measure of the so-called " room within a room" - principle alone can, against background noise in both directions truly effective manner.
The inside of such a construction sounds, of course, back to the way a vacuum: It whips and slams at every noise and also resonates with the space according to its natural frequencies. The walls must therefore be in accordance with the requirement of a uniform-sounding room to be calmed by appropriate insulation measures.
The crucial point is therefore the double-space system: Simplified one could say that wall thickness and double-space system contribute to the sound quantity, while insulating materials on or prior to defining the wall of sound quality.
On the part of professional manufacturers, there is now a range of solutions for mobile space-in-space concepts: More or less big boxes and booths can be set up later in studios and rehearsal spaces and resume demontieren.quelle: studio96.de
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