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
The Manifold Joys of Conformal Mapping: Applications to Digital Filtering in the Studio
Conformal mapping is a well-known technique for modifying the cut-off or resonant frequencies of filters. Conformal mapping is applied to the problem of digital filters for professional audio production. Methods are examined for computing the coefficients of presence filters, such as parametric equalizers with or without shelving, and of band-pass or band-reject filters. Formulas are given for the coefficients of these filters in terms of the specifications (center frequency, boost/cut, and so on), which are exact and relatively straightforward to compute. A new kind of shelving filter is introduced that is equiripple in the passbands and can have an arbitrarily narrow transition band (with increasing filter order).
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.