Lost in the Sound of Separation is the sixth full-length studio album by metalcore band Underoath. It was released on September 2, 2008.] The album title is taken from a line of the lyrics of "We Are the Involuntary". In an interview with MTV News about the effort, the band stated it featured 11 songs that total around 42 minutes. The latest release is said to be a lot "heavier" and "darker" than the 2006 release, Define the Great Line. A handful of people from MTV were the first to listen to several of the songs off the album, reviewing Read more on Last.fm.