E11 Craig Fitzgerald - Noise and Vibration - EIC - Applicant [pdf, 12 MB]
...variation in both reference pressure level and the properties of the medium (water), the numerical representation of underwater noise levels appear significantly higher than those typical in airborne noise. Furthermore, the characteristics of human hearing are largely irrelevant underwater, so frequency weighted sound descriptors such as dBA are inappropriate. In fact, any weighting system applied is only relevant to the hearing sensitivity of the receiver, which varies widely depen...