Transmission of sound through wall and floor structures

Chrisler, V. L.; Snyder, W. F.

doi:10.6028/jres.002.014

Cited by 6 publications

(2 citation statements)

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“…Even from the very first impact test, the design has changed remarkably little. The original tapping machine, developed by the United States National Bureau of Standards, consisted of five rods which could be controlled by a DC motor with a cam system to rise and fall at separate times, roughly once every fifth of a second [8]. From there, other teams developed their own versions of the device; with the next significant event coming in 1938, when Germany standardized their own tapping device (DIN 4110, 1938) [9].…”

Section: Physical Machine Constructionmentioning

confidence: 99%

“…However, many early researchers experimented with using a transmission loss style approach, where the sound in both the emission and reception rooms was measured (e.g. in [8,18,19]), and the difference between the two used to categorize the performance of the floor. Eventually researchers did move towards only measuring the sound level (or loudness level) in the reception room.…”

Section: Measurement Proceduresmentioning

confidence: 99%

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Recommendation for a Standard Rolling Noise Machine

Edwards,

Diaz,

Dallaji

et al. 2020

Preprint

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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.

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Section: Physical Machine Constructionmentioning

confidence: 99%

Section: Measurement Proceduresmentioning

confidence: 99%