  In the world of building acoustics, a standard tapping machine has long
existed for the purpose of replicating and regulating impact noise. However
there still exist other kinds of structure-borne noise which could benefit from
being considered when designing a building. One of these types of sources is
rolling noise. This report details a proposal for defining a standard rolling
noise machine. Just as the standard tapping machine can be used in any building
and on any surface as a way of characterizing and comparing the performance of
various floors with respect to impact noise, the development of a standard
rolling device would enable the same evaluation and comparison to be made with
respect to rolling noise. The hope is that such a prototype may serve as a
launch pad for further development, spurring future discussion and criticism on
the topic by others who may wish to aid in the pursuit of a truly standardized
rolling noise machine.
