Abstract

Sound fields of circular transducers are basic in acoustics. The ring function method for the calculation of an emitted sound field by a plane or spherical transducer was introduced in 1974. Now, computer technology is developing rapidly. An event-driven program is available in personal computer systems such as ‘‘Windows 95.’’ Then, a personal computational program for sound fields produced by circular transducers is developed. Computed images of sound fields are useful for understanding the features of emission of sound.

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