The change of direction, or beriding, of a sound wave as it passes from one medium to another.
"We just received our transfers from record to CD for 9 of our favorite albums from the 1960's. We could not be more pleased with the results. We can not imagine how you were able to eliminate the wear and tear of 30+ years of use. One of the albums has significant emotional meaning to my wife. After receiving your package, we immediately played ..."