Long-term effects of the use of a sound masking system in open-plan offices: A field study

Chevret, Patrick; Marchand, Julien

doi:10.1016/j.apacoust.2019.107049

Cited by 14 publications

(21 citation statements)

References 32 publications

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“…26 Haapakangas et al 27 studied employees' acoustic perception of office and its relationship with work performance, which showed that through interfering conversations and tasks which depend on working memory and language processes, the background noise level could influence personal productivity. There are similar findings in the research of Lenne et al, 28 in which the background noise was the main source of employees’ troubles and would cause the decline of acoustic perception and satisfaction.…”

Section: Introductionsupporting

confidence: 88%

Effects of different environment combinations on the comfort and productivity of researchers in winter

Kim

2022

Indoor and Built Environment

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Indoor environmental quality is considered an important indicator of the sustainable development of architecture. It not only reflects the comfort level of occupants in the building but also affects their productivity, particularly in research institutions. However, due to the inherent correlation among various environmental indexes, it is difficult to evaluate the influence of specific physical parameters on the occupant’s comfort and research performance. This paper is based on an experiment conducted in a controlled research office in a pharmaceutical research company in the Northeast of China. The controlled research office was equipped with a radiant floor heating system that supplied heating in winter. We recruited 32 researchers and divided them into four subgroups. Each subgroup of researchers was required to conduct daily research activities under 12 different environment combinations. Data were collected from physical environment measurements, questionnaire surveys and performance tests. The results reflected that under the condition of radian floor heating in winter, changes in thermal, visual and acoustic environments could have a significant influence on occupants’ satisfaction with the environment. However, the research performance was affected only by thermal and acoustic conditions. There was a weak correlation among thermal, visual, acoustic and indoor air quality comfort.

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Section: Introductionsupporting

confidence: 88%

Effects of different environment combinations on the comfort and productivity of researchers in winter

Kim

2022

Indoor and Built Environment

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“…Acoustic measurements in occupied open-plan offices (OPOs) span a period of 50 years starting from the 1970s, a period that marked an increase in the popularity of the open-plan design [1], to the current year 2020 [2,3]. Appendix A provides relevant details of previous studies reporting results from measurements in occupied OPOs over the last 50 years.…”

Section: Introductionmentioning

confidence: 99%

Sound in occupied open-plan offices: Objective metrics with a review of historical perspectives

et al. 2021

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“…Secondly, to consider sound fluctuations over time in rooms above the background noise (generally signified using L A90 ), level-based fluctuation parameters typically used in areas with multi-talker speech, for example, open-plan offices (Yadav et al, 2021), were calculated. These included noise climate NCl L A10 − L A90 (Kryter, 2013), noise pollution level NPL L A,eq + (L A10 − L A90 ) (Ayr et al, 2003), and M A,eq L A,eq − L A90 (Lenne et al, 2020). Thirdly, a set of psychoacoustic parameters was computed using the ArtemiS SUITE 11.0 by HEAD Acoustics (Herzogenrath, Germany): loudness N for time-varying sounds, with the unit "sone" following ISO 532-1 (International Organization for Standardization, 2017); sharpness S with the unit "acum" according to DIN 45692 (Deutsches Institut für Normung, 2009), roughness R (unit: "asper"); and fluctuation strength FS (unit: "vacil") according to the Hearing Model by Sottek (1993).…”

Section: Data Processing and Analysismentioning

confidence: 99%

Toward Child-Appropriate Acoustic Measurement Methods in Primary Schools and Daycare Centers

Loh

Yadav

Waye

et al. 2022

Front. Built Environ.

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Children spend a considerable amount of time in educational institutions, where they are constantly exposed to noisy sound environments, which has detrimental effects on children’s health and cognitive development. Extensive room acoustics measurements and long-term in-situ measurements in such institutions are scarce and are generally conducted using omnidirectional microphones. This study provides preliminary results of room acoustics in unoccupied conditions and in-situ noise measurements during occupancy, in classrooms and playrooms in Germany using an omnidirectional microphone, an adult HATS (head and torso simulator), and a child HATS. The results indicate that room acoustics of most of the sampled rooms need improvement (mid-frequency reverberation time, T30 (s) = 0.6 (0.3–1.1) and clarity index, C50 (dB) = 6.1 (1.6–10.4); speech transmission index (STI) = 0.7 (0.6–0.8); mean values and range); the sound pressure level (SPL) during activities was around 66 dB (A-weighted equivalent level SPL) in both classrooms and playrooms using omnidirectional measurements, which is somewhat lower than similar measurements in other countries that varied in measurement periods; psychoacoustics parameters relating to sound fluctuation (fluctuation strength and roughness) show variation with increasing room volumes; and that there may be some benefit in considering child HATS for in-situ noise measurements. While the validity of these results in relation to children’s perceptual evaluation (using questionnaires, etc.) is subject to future investigations, the results highlight some of the nuances in the choice of transducers in measurements with children and potential benefits of psychoacoustic parameters in complementing the SPL-based parameters in more comprehensively characterizing the noise environments in educational institutions.

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Long-term effects of the use of a sound masking system in open-plan offices: A field study

Cited by 14 publications

References 32 publications

Effects of different environment combinations on the comfort and productivity of researchers in winter

Effects of different environment combinations on the comfort and productivity of researchers in winter

Sound in occupied open-plan offices: Objective metrics with a review of historical perspectives

Toward Child-Appropriate Acoustic Measurement Methods in Primary Schools and Daycare Centers

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