Synthesis of a Virtual Urban Soundscape

Buildings

Monika Rychtáriková²  Martin Jedovnický¹  Andrea Vargová¹ 

[1]Department of Building Constructions, Slovak University of Technology Bratislava, Radlinského 11, Bratislava 81368, Slovakia

[2] E-Mails:

[3]Laboratory of Acoustics and Thermal Physics, Department of Physics and Astronomy, KU Leuven, Celestijnenlaan 200D, Leuven-Heverlee 3001, Belgium

[4] E-Mail:

关键词: soundscape;    urban public place;    prediction;    virtual acoustics;    listening tests;   

DOI  :  10.3390/buildings4020139

来源: mdpi

【 摘 要 】

The main research question addressed in this article is to find out to what extent it is possible to predict statistical noise levels such as L₅ and L₉₅ on an urban public square, based on the information about the square’s functionality, the activities going on, and the architecture of the surrounding buildings. The same information is also exploited to auralize the soundscape on the virtual square, in order to assess the disturbance perceived by people of the traffic noise by means of laboratory listening tests, which are based on binaural sound recordings acquired in situ and incorporated in simulations to evoke typical acoustical situations. Auralizations were carried out by two calculation algorithms (ray-tracing and image source method) and two acoustic scenarios (an anechoic situation and a virtually reconstructed square in Odeon^®). The statistical noise levels, calculated from the auralized soundscapes, compare well with measurements in situ. The listening test results also show that there are significant differences in people’s perception of traffic noise, depending on their origin.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.