The band produced the album with Adam Dutkiewicz and Matt Goldman, both of whom worked on Define the Great Line. They decided to go on a hiatus Lost in the Sound of Separation was recorded at Glow in the Dark Studios in Atlanta, Georgia in March and April 2008. Following the release of their fifth studio album Define the Great Line (2006), relationships between members became strained to the point they almost broke up.
It was released on September 2, 2008, through Solid State and Tooth & Nail Records.
Lost in the Sound of Separation is the sixth studio album by American rock band Underoath.
