Abstract
Experience indicates that impact noise complaints in multi‐family joist‐framed buildings fall into two broad classes: low frequency thudding from footfalls and mid‐ to high frequency noise from heel clicks, dragging furniture, etc. The authors have developed a two‐parameter system for evaluating impact noise [LoVerde and Dong, J. Acoust. Soc. Am. 119, 3220 (2006); 120, 3206 (2006); 122, 2954 (2007)] that offers considerable improvement over existing metrics (such as FIIC) in terms of both correlation with subjective reaction and comparison of materials intended for improving impact insulation. Based on this system, suggested criteria for impact noise levels are presented. The effects of various design parameters on noise levels are discussed.
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