Sound fields near building facades

J.D. Quirt

Abstract


Measurement of sound transmission through the exterior facade of a building requires a determination of the incident sound power. Direct measurement of the sound field near the relevant surface seems preferable to the use of a `calibrated source' because of variability in outdoor propagation associated with ground reflections and atmospheric conditions. The interpretation of sound pressure level measurements in this environment is, however, complicated by the interference between incident sound waves and those reflected from building surfaces. This paper presents experimental results and a simple predictive model

Keywords


acoustic field; acoustic wave reflection; acoustic wave transmission; architectural acoustics; building facades; sound transmission; sound power; sound field; outdoor propagation; ground reflections; atmospheric conditions; sound pressure level; sound waves

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