Hydroacoustics of three-dimensional, turbulent, and incompressible flow over no-slip and superhydrophobic cylinders has been studied at Re = 3900. The OpenFOAM libraries have been used to simulate the flow by means of the large eddy simulation technique. A third-type Robin boundary condition has been utilized to apply superhydrophobicity on the surface including two different slip coefficients of 0.425 and 0.1. The effect of superhydrophobicity on the drag and lift coefficients, the Strouhal number, the overall and maximum sound pressure levels along with the directivity of sound has been investigated. Regarding the acoustical analysis, the Ffowcs Williams-Hawkings acoustic analogy is used to investigate the generation and propagation of sound. For the case of a superhydrophobic cylinder, the application of slip is found to decrease the mean drag coefficient and the rms of lift coefficient by 14 and 54 percent, respectively. It also leads to an 8 percent increase of the Strouhal number. Furthermore, the overall sound pressure level is reduced by an amount of 5 decibels.