Since I Left You is the debut studio album by Australian electronic music group The Avalanches, released on 27 November 2000 by Modular Recordings. It was produced by group members Robbie Chater and Darren Seltmann, and samples extensively from various genres. The album was recorded and produced at two separate, near-identical studios by Chater and Seltmann, exchanging audio mixes of records they sampled.