Joachim Haas and Gregorio Karman from the Experimental Studio for Acoustic Art of Southwest Broadcasting (SWR) in Freiburg, which had been founded on 1 September 1971 as the Experimentalstudio der Heinrich-Strobel-Stiftung des SWF,[REF] created the OKTEG, a special piece of equipment to allow Stockhausen to realize the spatialization manually.
The OKTEG (Octophonic Effect Generator) relies on a Max/MSP patch that uses eight variable-law amplitude panning modules.