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
Design Considerations for an Accelerometer-Based Dynamic Loudspeaker Motional Feedback System
A 15-inch dynamic loudspeaker employing a peak 30 dB of accelerometer-based negative feedback shows a reduction in harmonic and intermodulation distortion by a factor of 10 over conventional designs. It is argued that distortion, rather than frequency response, is responsible for the subjective qualities of bass "muddiness" or "overhang" that degrade reproduced music. Engineering tradeoffs that influence the design of such servo loudspeaker systems are discussed.
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