AES E-Library

Evaluation of a Multipoint Equalization System Based on Impulse Response Prototype Extraction

A frequency domain, multipoint equalization algorithm can be used to improve sound quality in a variety of spaces ranging from automobiles to home living rooms. The equalizer is designed in the frequency domain. From a set of smoothed impulse responses, suitable frequency prototypes are extracted. Inverse filters are then obtained by frequency deconvolution with regularization or LPC modeling. Compared to single-point equalization, the proposed algorithm proves to be superior in terms of spectral deviation and robustness. Various computational methods have been explored. Then the robustness of multipoint equalization is also evaluated for positions that differ from those used for the equalizer estimation.

Authors: Cecchi, Stefania; Palestini, Lorenzo; Peretti, Paolo; Romoli, Laura; Piazza, Francesco; Carini, Alberto
Affiliations: DIBET, Università Politecnica delle Marche, Ancona, Italy; DMFI, Università di Urbino, Urbino, Italy(See document for exact affiliation information.)
JAES Volume 59 Issue 3 pp. 110-123; March 2011 Import into BibTeX

Click to purchase paper or login as an AES member. If your company or school subscribes to the AES Journal then you can look for this paper in the institutional version of the Online Journal. 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.

Learn more about the AES E-Library

E-Library Location: (CD JAES59)   /jaes59/3/pg110.pdf

Start a discussion about this paper!