Process using gain control devices to improve the signal to noise ratio. (See Burwen, DBX and Dolby.)
"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 ..."
