The meaning of Soundwave tattoo is the transmission of information. Soundwave is the propagation form of sound, and the object that emits sound is called sound source. Sound wave is a kind of mechanical wave, which is generated by the vibration of sound source. The space where sound waves propagate is called sound field. The frequency of the sound wave that can be heard by the human ear is generally between 20Hz (Hertz) and 20kHz.

Soundwaves can be understood as the propagation of small disturbances in the medium deviating from the equilibrium state. This propagation process is only a process of energy transmission, not mass transmission. If the disturbance is small, the transmission of sound waves satisfies the classical wave equation and is a linear wave. If the disturbance is large, the linear acoustic wave equation is not satisfied, and wave dispersion and shock wave will occur.

Source: @patricionardi