building acoustics Applications

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Sound Insulation solutions for building acoustics

by Brüel & Kjær Sound & Vibration Measurement A/S     based in Nærum, DENMARK

Sound energy does not remain in the room where it is produced, but propagates throughout the building by any available path, intruding into other rooms as noise. Each country has its own standards of sound insulation in buildings, but it is measured in the same way all over the world. The noise levels in the two rooms under investigation are measured and subtracted, and the level difference is corrected for the influence of the reverberation time and background noise level in the receiving room. The measurements and calculations are made in 1/1- or 1/3-octave bands and averaged over a number of positions in the rooms. Finally a single-number index is calculated by averaging over all the frequency bands.

2-Channel sound insulation for building acoustics

by Brüel & Kjær Sound & Vibration Measurement A/S     based in Nærum, DENMARK

Façade sound insulation is measured like sound insulation between rooms, except that one `room` is actually open space. The sound level is measured inside the receiving room and outside the façade of the building. The level difference is then corrected for the influence of the reverberation time and background noise level in the receiving room. Finally a single-number index is calculated by averaging over all the frequency bands. A loudspeaker source can be used for the measurement, giving a choice of sound incidence angle. But in practice, placing the loudspeaker and getting a high enough sound level can be difficult.

Sound Instrumentation for Building Acoustics

by Norsonic AS     based in Lierskogen, NORWAY

The field of building acoustics consists of two parts; Room Acoustics which deals with sound propagation in a room and Building Acoustics, which deals with sound propagation between rooms. Typically, room acoustics is related to the quality of sound, e.g. concert hall acoustics, while building acoustics is more related to unwanted sound, i.e. when you want to hear as little as possible of what is going on in adjacent rooms. From a measurement technology point of view, the two have a lot in common which shall be outlined here.

Noise and vibration problem solutions for education sector

by Acoustic Associates Sussex Ltd     based in Shoreham Airport, UNITED KINGDOM

Good acoustics is an important aspect of designing buildings for education, poor acoustics have a detrimental effect on the learning environment. The “Essex Study”

For Animal Shelters

by Troy Acoustics Corporation     based in Brunswick, GEORGIA (US) (USA)

Troy Acoustics Corporation and the multi-faceted designs and products it produces are well versed in the requirements of animal shelters for the purpose of reducing objectionable sounds from within the facility and minimizing their transference to locations outside and adjacent to the shelter building and grounds.

Related Terms for building acoustics

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