The role of intensity in auditory wave phase.
Henry M. Halverson · The Psychological Monographs · 1922
Fundamental facts observed; t he phantom at t he loop; the phant om ot the node; rel ati ve i ntensi ty for each unit field, (methods A and B); compari son of tones of di fferent pitch; effect of di recti on of the current; vari ati on in absol ute i ntensi ty of the sources; di fference in i ntensi ty of the two sources; rel ati on of di stance to l oudness; effect of movi ng one source; l ocal i sati on outsi de of t he l i ne of the recei vers; timbre; phant oms of fundament ah and Wave phase localization can be studied best perhaps under normal conditions; i.e., without the aid of conductors for the ears.In our work, at least, it has been found profitable to do away with artificial means as far as possible.The apparatus is indeed simple, consisting merely of a tone generator (a Leeds and Northrup oscillator) and two telephone receivers with the necessary wiring for connections.The receivers face each other at such distances as the experimenter may elect, the intensity and pitch of the tone under control of the experimenter.Observations are taken from a meter stick which is suspended overhead between the receivers.