In This Section
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
AES Journal Forum
Kautz Filters and Generalized Frequency Resolution: Theory and Audio Applications
Frequency-warped filters have recently been applied successfully to a number of audio applications. The idea of all-pass delay elements replacing unit delays in digital filters allows for focusing enhanced frequency resolution on the lowest (or highest) frequencies and enables a good match to the psychoacoustical Bark scale. Kautz filters can be seen as a further generalization, where each all-pass element may be different, allowing also complexconjugate poles. This enables an arbitrary allocation of frequency resolution to filter design, such as modeling and equalization (inverse modeling) of linear systems. Strategies for using Kautz filters in audio applications are formulated. Case studies of loudspeaker equalization, room response modeling, and guitar body modeling for sound synthesis are presented.
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