In the course of attempting to recreate realistically the sounds of jet aircraft overflights, it was discovered that a monophonic recording of a jet takeoff or landing, when presented through a four‐channel system (one speaker in each corner of the room), gave the sensation that the sound was coming from a single source directly overhead. This seemed a rather interesting phenomenon, since the four speakers were below the level of the listener's head. A study was then conducted, using several 1‐oct wide bands of noise as well as some meaningful sounds, to determine more definitive aspects of this phenomenon. The results of these studies will be reported.