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Abstract: In producing online teaching resources for acoustical engineering students, an applet shell is a fast and effective choice in order to produce a wide range of programs. This online material is not intended as a substitute for traditional classes, the applets can act as supplementary material to help strengthen a student’s understanding of the subject area. The online format of these types of teaching aids means they can be easily used in any tertiary classroom setting, regardless of class size. By creating basic functionality for a shell an academic does not need to waste time writing code that performs tasks not associated with producing the acoustic theory part of the program. Nor are they required to know exactly how those tasks are performed. This paper describes the creation of a shell designed specifically for acoustical engineering that enables students to both observe graphs but more importantly to hear the sounds on the computer’s speakers as they adjust the input. Using a collaborative approach between a programmer and an academic a Java shell was created that can be used to create many online acoustical resources for students similar to the examples presented in the paper