Abstract
As national building codes and acoustic comfort standards become more common as tools for quantifying and promoting acoustical quality in dwellings there is a greater need for field testing of buildings. The intent of this project is the promotion of a greater use of field testing by providing more convenient measurement methods. Primarily the focus has been on identifying the ideal sound source. Explosive sources using charges produced for use in powder powered tools have emerged as satisfying the majority of our needs. Continuing study is aimed at optimizing such a source. In particular, it needs to produce adequate power for measuring at the low frequencies required for implementing the new spectrum adaptation terms for the traditional single-figure ratings of building insulation.
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