A solid with less density will tend to have a lower speed compared to a liquid with high density. The approximate change in the speed of sound with a change in each property is. Engineering Acoustics Outdoor Sound Propagation Wikibooks Open Books For An Open World The SI derived unit for speed is the metersecond. . The characteristics of the medium are also. The speed of sound in water increases with increasing water temperature increasing salinity and increasing pressure depth. Fundamentally standard sound is a compression wave traveling though a material. Fundamental for this purpose is the exact knowledge of the speed of sound in water that is variable and dependent on pressure depth density temperature and salinity 192021. The speed of sound in water is about 1500 meters per second which is faster than the speed of sound in air. We assume you are converting between speed of sound water and metreday. Th