Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015
Effect of Microphone Number and Positioning on the Average of Frequency Responses in Cinema Calibration - October 2015
The Measurement and Calibration of Sound Reproducing Systems - July 2015
Measurement of Panel Reflection Using Acoustical Scale Modeling Techniques
The importance of early reflected sound from sidewall and ceiling reflecting panels in auditoriums and spaces used for musical presentation has been recognized for some time. Experience teaches that the size, shape, and orientation of the panels affect their reflecting characteristics. Results of ongoing studies using scale modeling techniques are presented. The measured reflection transfer function is given for several types of reflecting panels. Transfer functions measured in the shadow zone of a reflecting panel exhibit interference characteristics. The nonuniformity of the transfer functions is shown to be due to out-of-phase waves diffracted from the panel edges.
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