David Alan Bies

TL;DR: In this paper, the authors describe the human ear's physical properties of the central partition of the Central Partition of Noise Induced Hearing Loss Subjective Response to Sound Pressure Level Instrumentation for Noise Measurement and Analysis Microphones Weighting Networks Sound Level Meters Classes of Sound Level Meter Sound Level meter Calibration Noise Measurements Using Sound Level Measurement Data Loggers Personal Sound Exposure Meter Recording of Noise Spectrum Analysers Intensity Meter Energy Density Sensors Sound Source Localization Criteria Introduction Hearing Loss Hearing Damage Risk Hearing Damage risk Criteria Implementing a Hearing Conservation

TL;DR: In this paper, the measurement and use of flow resistance information for the calculation of the acoustical properties of porous materials has been examined, and it has been demonstrated that flow resistance provides a description of a porous material which is sufficient to characterise its acoustic performance for all common applications.

TL;DR: In this paper, the effect of the panel characteristics on the decay behavior of the cavity sound field is investigated and the interesting phenomena of maximum sound absorption and resonance frequency "jump" are identified and interpreted in terms of the coupling behavior of both the panel and cavity modes.

TL;DR: In this article, inversion of the linear power balance equations is used to determine the plate loss factors and the coupling loss factors in situ, and good agreement is obtained between the predicted and measured coupling loss factor and between the in situ loss factor, for each plate separately also in steady state from power injection measurements.

TL;DR: In this paper, a rectangular panel-cavity system has been used as a model for analyzing the response of the structural vibration and the cavity sound field under both controlled and uncontrolled conditions.