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Journal Forum
Closed-Box Loudspeaker with a Series Capacitor - July 2010
4 comments
EW-PESQ: A Quality Assessment Method for Speech Signals Sampled at 48 kHz - April 2010
2 comments
The Art and Business of Game Audio - April 2010
2 comments
AES E-Library
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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