Connection Between the Impact Noise Level and Sound Transmission Loss

Based on the results presented in the preceding paper, an expression connecting the impact‐noise level (Ln) and sound transmission loss (TL) of a floor is derived that takes into account both the resonant and the forced response of the floor; it thus extends the utility of the formulas derived previously by Heckl and Rathe into the frequency range below the critical frequency. It is shown how this connection between impact‐noise level and sound TL can be used for the experimental evaluation of the potential TL of a floating floor in the presence of certain types of flanking.