Key points are not available for this paper at this time.
This paper investigates methods to estimate outdoor-to-indoor noise level reduction (NLR) for single family residential structures before and after the installation of sound insulation treatments to improve the structure's NLR. Acoustical modeling results and Outdoor-Indoor Transmission Class (OITC) ratings are evaluated in the context of treatment design for airport sound insulation programs and assessment of soundproofing product performance. Overall, post-construction NLR predictions are observed to have a high degree of accuracy when the results are generated using a combination of pre-construction measurement data and acoustical modeling techniques. The composite OITC rating of the noise exposed building façade is also shown to be an effective metric for predicting NLR values.
Cox et al. (Sun,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: