SPECTRAL RESPONSE OF HARBOR RESONATOR CONFIGURATIONS

William James

Abstract


An outline is given of methods devised recently "by the author to predict the spectral response of rectangular resonators, and to improve the response of resonators generally A simple small scale acoustic model of the ocean-resonator-harbor configuration was developed and is described The acoustic "ocean" is effectively decoupled from the rest of the system by means of sound absorbent material placed along the "infinite" boundaries, and standard audio-frequency equipment is used The results demonstrate that the open end contraction for rectangular resonators may not differ significantly from the contraction for resonators of similar geometry placed in a semi-infinite (or effectively decoupled) wave channel, at least if the wavelengths are not smaller than the width of the harbor entrance channel.

Keywords


harbor; harbor resonator; spectral response

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