STUDIOBOX
Soundproof cabin

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Effective sound insulation

Combating noise directly at the source is generally the most effective form of noise protection. This involves three things:

 

  • Reduction of sound generation

  • Reduction of sound transmission

  • Reduction of sound radiation

 

Because these efforts are aimed directly at the source of the noise, they are also known as primary measures.

Encapsulating the source

Where the noise source itself cannot be reduced, the next, secondary measure recommended is the best possible encapsulation.

The STUDIOBOX system offers this optimised encapsulation. No other product on the market achieves demonstrably better values with simultaneously optimised interior acoustics.

Experience STUDIOBOX live

Insulation values far above ISO standard

Every STUDIOBOX - regardless of the model - provides a sound level reduction of up to 53 dB, depending on the frequency range. The measured values have been compiled and tested by the Fraunhofer Institute for Building Physics, an institution that has been playing in the top league of research worldwide for decades.

According to the new, Europe-wide standard ISO 23351-1:2020, speech level reduction for soundproof booths & co. is divided into five classes. The top A+ class prescribes a reduction of at least 33 decibels/dB. Classes A, B, C and D are correspondingly lower.

Privacy through perfect insulation

Even if manufacturers, especially of glass acoustic cabins, claim otherwise: privacy/data protection is definitely only guaranteed to a limited extent, even at -33 decibels. A lot of information still comes through clearly. Especially as most of these boxes are only in class A and B.

STUDIOBOXes exceed class A+ by up to 20 decibels/dB.

For comparison: 

Although the perception of volume is subjective and also depends on hearing ability, it is said that a decrease of 10 decibels/dB means that we perceive a sound source to be about half as loud as before. Another 10 decibels less halves it again, so it is only a quarter of the original volume, and so on.

Booth design  General influencing factors Sound measurements

Booth design

Double-shell element construction + interior acoustics

Each STUDIOBOX acoustic element has a double-shell construction. The outer and inner shells are connected to each other by a decoupled frame. Tongue and groove as well as double seals in the joints ensure the highest degree of tightness of the assembled acoustic booth. The elements are joined together using toggle locks.

Doors and windows

The door - a STUDIOBOX design - is matched to the modules. Double folds with all-round seals and a quadruple locking system prevent unwanted noise from passing through.

The windows are double-glazed with panes of different thicknesses, the panes are decoupled from the frame with foam rubber bands. The modules have the same sound insulation quality as full wall elements.

Detailed views

Service Room within a room Features

STUDIOBOX quality features

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  1. Double-shell wall element
  2. Floor construction, oscillating mounting
  3. Studio box acoustic door (in-house development)
  4. High sound diversion due to effective element connections
  5. Sound-insulated ventilation system

Factors influencing sound insulation

Building acoustics deals with the influence of structural conditions on the propagation of sound between rooms in a building or between the interior of the building and the outside world. The determining factors for successful sound insulation are briefly described below.  

Quality of the soundproof cabin

This is where material selection, design and production quality count: 
 

  • the mass per unit area, the weight of the acoustic element as a separating component 

  • the dynamic stiffness of the materials used 

  • the element size, thickness and filling 

  • the combination of materials 

  • the construction of the individual element and the resulting vibration behaviour  

  • the connection technology 

  • the quality of the processing

Nature of the sound source

The type of sound source is another influencing factor. Important parameters here are pitch (frequency), level and impulses (peaks), differences in frequency ranges (e.g. of orchestral instruments) etc. The insulation of low frequencies generally requires more effort.

Quality of the building

In general, the more massive the on-site single-skin wall, the less noise arrives on the other side.

This results in different starting conditions before the measures are realised, which should be included in the considerations in advance.

Acoustic solutions are always relative and not "absolute". Acoustic cabins generally have a sound-absorbing effect. However, there is no such thing as a completely soundproof cabin - even if some manufacturers claim otherwise.

Measurement of the airborne sound insulation of a fully assembled booth

The airborne sound insulation between two rooms in a building is determined in accordance with DIN EN ISO 16283. The STUDIOBOX is either the transmitting or receiving room, depending on the direction of the measurement. The measured airborne sound insulation as an essential characteristic of the installed sound attenuation booth depends on the frequency and can be converted into a single number Dn to characterise the acoustic performance.

To assess the quality of a cabin, however, the individual measured values for each frequency range should always be analysed. The individual values are only of limited significance and are not sufficient for assessing the sound insulation quality of the entire construction.



Determination of standard sound level difference

Airborne sound insulation
 

Measurement of a single element in the laboratory

R and Rw are only laboratory values for visualising the sound insulation quality of a component. Here, a single acoustic element is measured in the door test frame of the acoustic laboratory.

These parameters provide information on the quality of the individual element, but not on that of the fully assembled sound insulation enclosure.

The room within a room

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