Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
Investigations of Room Acoustics with a Spherical Microphone Array
Most room acoustic parameters are calculated with data from omni-directional or figure-of-eight microphones. Using a spherical microphone array to record room impulse responses can open up several new areas of inquiry. It can yield much more information about the spatial characteristics of the sound field, including the diffuseness of the sound field and the directions of individual reflections. A 16-channel microphone array was designed, built, and tested with both simulations and simple, controlled sound events. Room impulse responses were then measured in reverberant rooms used for music from stage and audience positions, and the results were analyzed using beamforming techniques to determine spatial information about the sound field.
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