The prediction of vibration and sound transmission in ship structures is a recent and potentially important area of SEA applications. The developments of these applications in the U.S., Europe, and the Far East is reviewed. These developments include both experimental studies and analytical analyses (including computer studies). There are several issues to be resolved in this work which include the role of in‐plane vibration of the hull and the degree to which reverberation in the structure does or does not dominate traveling wave effects.