A measure of the response of human hearing to the strength of a sound. It is scaled in phons and is an overall single evaluation calculated for the level of sound pressure of several individual bands.
"I am truly amazed at how good this CD sounds. With signal to noise ratio as bad as it was, I am extremely impressed with how good this CD sounds. I know you spent more than only 5 minutes per track and I really appreciate the extra time you took on this record album. I can't tell you how much this record means to me and the wonderful ..."