Acoustic dispersion
Separation of a sound wave into component frequencies while passing through a material / From Wikipedia, the free encyclopedia
In acoustics, acoustic dispersion is the phenomenon of a sound wave separating into its component frequencies as it passes through a material. The phase velocity of the sound wave is viewed as a function of frequency. Hence, separation of component frequencies is measured by the rate of change in phase velocities as the radiated waves pass through a given medium.[1][2]