Studies of acoustical parameters in open-plan offices

Abstract

/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. America, 63, 3, pp. 832-840, 1978-03 Journal of the Acoustical Society of Studies of acoustical parameters in open-

The intelligibility of words, sentences, and continuous discourse using the articulation index

“…It is very common to use Al for determining the placement and design of materials for rooms heavily used for speech communication (Cavanaugh et al, 1962: Herbert, 1978Pirn, 1971;Warnock, 1978: andMoreland, 1989). There is even an American Society of…”

Sound propagation between two adjacent rectangular workstations in an open-plan office—part I: mathematical modeling

“…It can be seen from Figure 1 that in addition to the dividing screen over which the sound diffraction occurs, the side and back panels, which are at least partially sound reflective, must be considered. Also, as pointed out by many researchers [1,2,8,9] , the ceiling reflection usually plays an important role in speech privacy in open-plan offices and must be included in the model. In [8,9], the acoustic behaviour of a single screen in a flat room was modeled by employing the image source method.…”

“…For many years, much work has been performed to investigate the acoustical elements that could affect the physical acoustical environment in open-plan offices, such as office screens [1,2] , ceiling and floor reflections [2,3] , speaker orientation [4,5] , and side panel reflections on the source side [6] . Other work has discussed the factors that may improve speech privacy subjectively, such as vocal effort [4] , and added masking sound [5] .…”

A mathematical model for a single screen barrier in open-plan offices

“…Mathematical model, single screen -15 Note that in previous practical calculations, single screen behavior in a flat room was mostly predicted based on the direct diffraction and the first ceiling reflection paths [7,14] .…”

“…Consequently, the sound energy may reach the receiver on the other side of the screen via two possible mechanisms: diffraction at the screen edge, and reflection at the ceiling, as shown in Figure 1. For an open-plan office, the most important component affecting the acoustical privacy is typically the ceiling reflection [7] . As a result, it is suggested that the ceiling should be highly sound absorbing.…”