Refraction (sound) Refraction (sound) Refraction, in acoustics, comparable to the refraction of electromagnetic radiation, is the bending of sound propagation trajectories (rays) in inhomogeneous elastic media (gases, liquids, and solids) in which the wave velocity is a function of spatial coordinates. Bending of acoustic rays in layered inhomogeneous media occurs towards a layer with a smaller sound velocity. This effect is responsible for guided propagation of sound waves over long distances in the ocean and in the atmosphere. In the atmosphere, vertical gradients of wind speed and temperature lead to refraction. The wind speed is usually increasing with height, which leads to
A-sound featured two bonus live cuts. Later in 2009, A-Sound began recording a follow up album, but after becoming unsatisfied with the results, scrapped it. A-Sound covered a song from The Beatles. A-sound A-sound is a Mongolian indie rock band. They have had success in Mongolia with songs and albums released in both Mongolian and English versions. Their single "Release" was number one on the Mongolian chart for nine weeks. "A-sound " with five members (Lead Vocalist, Pianist, Bass Guitarist, Drummer, Solo Guitarist ). Before the band gathered they used to play separately. In 2006 all members decided to become band