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
Real-Time 1/3 Octave Analyzer Type 3347
Modern acoustic laboratories require extremely versatile frequency analyzers. A one-third octave analyzer has been developed which provides visual readout on a -14- screen, graphic plotting and digital output programmable by a computer. Attention has been given to the statistical requirements of averaging times versus bandwidth relationship for random data. In one of its modes, the time constant varies inversely with frequency to provide 20 seconds averaging at 20 Hz. The theory of operation and application will be discussed.
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