Wave phase localization may be studied under normal conditions; ie, without the aid of conductors to the ears. Our apparatus consists of two telephone receivers connected in series from the same source. If the receivers are so energized as to produce a pure tone, the observer, by closing one ear and moving the head carefully from one source to the other, (the side of the head parallel to the axis of the receivers) will experience a series of "highs" and "lows" in intensity. These points of maximum and minimum intensity correspond exactly to the points of reinforcement and interference as obtain in the standing wave.
Proceedings of the Iowa Academy of Science
©1920 Iowa Academy of Science, Inc.
Halverson, Henry M.
"The Localization of Sound by Wave Phase in the Open Ear,"
Proceedings of the Iowa Academy of Science, 27(1), 230-233.
Available at: https://scholarworks.uni.edu/pias/vol27/iss1/42