The Variation in Sound Intensity of Resonators and Organ Pipes with Blowing Pressure

Abstract
Synopsis.—Quantitative measurements were taken to ascertain the relation between the sound intensity of wind-blown instruments and the blowing pressure. The intensities of sound emitted by a tone-variator resonator and an organ pipe were measured by a Rayleigh resonator while the blowing pressure was noted by means of a water manometer. Assumptions concerning the constancy of the pitch of the sound and permancy of the sound pattern appeared justified.

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