Sound propagation within a double skin facade and its influence on the speech privacy in offices

Invited paper

Daniel Urbán

Department of Building Structures STU

Wednesday 3 june, 2015, 17:00 - 17:20

Auditorium 2 (592)

Double transparent facades (DTF), as a part of the facade structure of many administrative buildings, have a positive impact on the reduction of the background noise levels in working places caused by traffic noise. However, the space between the two glass structures is acoustically connecting the adjacent rooms (offices) in most of DTF realisations, causing a possible decrease of speech privacy in the offices due to flanking sound propagation. This article focuses on the prediction of the sound propagation between two modelled offices (via the mentioned cavity of DTF) by means of Odeon® software. Default simulation model, is based on a real situation in the National Bank of Slovakia in Bratislava, where the speech privacy is of a high interest. The influence of the cavity width and shape, as well as the window openings area and background noise from traffic on speech intelligibility is reported.

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