Abstract
In this paper we describe the signal acquisition and processing approaches we have implemented using a portable mini‐computer system in laboratory experiments of acoustics and vibrations courses. Also described will be examples of programs we have developed to data which include the simulation of 1‐ and 2‐degree‐of‐freedom vibrating systems, the analysis of displacement, velocity, or acceleration signals of such systems; the digital processing of speech and other transient acoustic signals to obtain spectrograms; the determination of reverberation time; two‐dimensional ray tracing in homogeneous and inhomogeneous layered media; and a general data acquisition, processing, and display program in which any one of more than 70 commands can be called with a three‐letter mnemonic. Key to all the examples is the versatility of the system and the ease with which new experiments or examples can be implemented by inexperienced users.
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