Jason Obadiah
Universitas Multimedia Nusantara

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A Report on The Acoustic Conditions of IEQ Laboratory Using ISO 3382-3 Jason Obadiah
ULTIMART Jurnal Komunikasi Visual Vol 10 No 1 (2017): Ultimart: Jurnal Komunikasi Visual
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (634.426 KB) | DOI: 10.31937/ultimart.v10i1.759

Abstract

Recently, many facilities have completed new laboratories that may be used to assess various measures of Indoor Environment Quality (IEQ) in office spaces. Also recently, a new standard, ISO 3382-3, was released for assessing the effects of speech on IEQ in open plan offices. The aim of this report is to assess one room of the IEQ lab using the ISO 3382-3 standard. It is expected that the data gained will be of help to researchers using the facility in the future. Keywords: ISO 3382-3, Indoor Environment Quality, Acoustics
Designing Roadside Noise Barrier Jason Obadiah
ULTIMART Jurnal Komunikasi Visual Vol 10 No 2 (2017): Ultimart: Jurnal Komunikasi Visual
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (550.982 KB) | DOI: 10.31937/ultimart.v10i2.770

Abstract

Noise is the common problem in the residential area, whether it came from events, vehicles, construction sites, or urban area. The most affected residential area are usually the ones which adjacent to the highway or a road. When someone is overexposed from the noise, this could lead into many health problems. This is why a noise barrier is essential to be built along the road. problems regarding the noise barrier is that although the barrier can attenuates the noise from the traffic, there are other sound source, or in this case, noise source other than the traffic such as the airplane. This problem mostly happened on the residential ground around an airport. One of the solutions for these problems is by using vegetation as additional noise barriers. By doubling the barrier (noise barrier - vegetation) the attenuations will probably much higher, in accounts that the vegetation is much higher than the barrier so that if there are multiple floor buildings, the floors above will also provide with noise insulations. Although, it would be more appropriate to use acoustic treatments to the buildings. The other solution is that by using the concept of constructing a louver or cap atop the wall that is directed back toward the noise source. This concept follows the theory that such a design should inhibit shadow zone diffraction filling in sound behind the noise barrier. Keywords: noise, sound, barrier, attenuation