Cardiff was born 1957 in Brussels (Ontario, Canada). Miller was born 1960 in Vegreville (Alberta, Canada).
Both based in Grindrod (British Columbia, Canada).

Began making art together in 1995 and known worldwide for their multimedia installations incorporating sound. Major works include the Walk series, which require visitors to follow a course using audio guides, video cameras, and sometimes other equipment, to follow a story presented in sound and images, and The Forty Part Motet, in which 40 separately recorded voices of a choir singing "Spem in Alium" by Thomas Tallis are played back through 40 speakers placed strategically throughout the space. Theirs is the kind of art that draws viewers in so deeply that it feels like a real-life experience. Cardiff and Miller represented Canada in their national pavilion at the 49th Venice Biennale in 2001, where they won the Special Award and the Benesse Prize. They have participated in a number of other international exhibitions, including documenta 13 in 2012.

Installation view at Aichi Triennale 2013 　 photo: Ito Tetsuo