Recent:
Feature in Pitchfork's The Out Door:
Turning the World Into Art: The world of field recordings with Chris Watson, Ernst Karel, and Art Rosenbaum
Swiss Mountain Transport Systems (Gruenrekorder)

"Plattenbau (Abfall herausgenommen)", on framework seasonal:::autumn 2011
EKG, on Michelangelo Antonioni: Trilogy And Epilogue (and/OAR, 2011)
Heard Laboratories (and/OAR, 2010)
more information about Heard Laboratories
Ernst Karel and Annette Krebs, Falter 1-5 (Cathnor, 2010)
reviews of Falter 1-5
Chicago Sound Map, Performs Compositions by Olivia Block and Ernst Karel (Kuro Neko, 2009)
EKG, Electricals (another timbre, 2009)