There are two artists by this name. 1) Impulsantwort is the moniker of German artist O.san Van Sall (another alias, obviously). His music draws its influences mostly from the club music of the nineties (particularly the legendary Omen in Frankfurt, the sound of which O himself describes as "dirty; fu*kin' loud"). But that's been a while. "The impulse is a clearly defined signal with a one-dimensional source, the answer, on the other hand, is diffuse and complex." (from the official homepage) Read more on Last.fm