I. Methods of Making Speech Records.
The study of spoken rhythm is of primary importance. Observations on what the subject really does are always open to the objections that subjective factors play a large part, and that the observer’s perception of a rhythm is after all his perception of the rhythm, not the subject’s. The voice is an important indicator of the activities which generate the rhythms of verse and music, and some objective method of measuring the sounds made is essential to a study of the rhythm production.
Methods of recording and studying the tones of the voice are as numerous as they are unsatisfactory. In the main the work has been done for purposes of phonetics, and but few of the methods are applied in the psychological laboratory.
Marage has an excellent summary of the methods with practical comments on their applicability. Rousselot (Histoire des applications de phonetique experimentale, 401-417: objets et appareils, 1-10 et 669-700) gives a careful history of the methods from the phonetic point of view. Scripture gives a convenient English summary of the processes.
 Marage: l’Annee psychologique, 1898, V., p. 226.
 Rousselot: La Parole, 1899.
 Scripture, E.W.: Studies
from the Yale Psych. Lab.,
1899, VII., p. I.