This paper presents several improvements that have been introduced on the design and operation of an adaptive 20-band room equalizer. The equalizer is implemented on a TMS320C6711 DSP platform and performs fast FIR filtering in the frequency domain. In order to reach fast adaptation to time-varying acoustic conditions, several adaptation rules operating in the frequency domain have been evaluated and the impact of a frequency-varying step-size parameter on the convergence rate has been studied. These results will be presented along with ideas and plans for future developments.

Authors: Ferreira, Anibal J. S.; Leite, Antonio
Affiliations: INESC Porto; University of Porto(See document for exact affiliation information.)
AES Convention: 118 (May 2005) Paper Number: 6501
Publication Date: May 1, 2005 Import into BibTeX
Session Subject: Room and Architectural Acoustics; Sound Reinforcement
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=13217

Click to purchase paper as a non-member 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 $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 118Papers)   /118/6501.pdf

Start a discussion about this paper!