This paper addresses the implementation of a real-time 20-band adaptive digital audio equalizer for room equalization. The system has been implemented on a TMS320C6711 DSP platform and performs adaptive filtering using techniques of fast filtering in the frequency domain that include an adaptation procedure. The paper explains how the structure of a previously designed graphic equalizer has been improved to support adaptivity, describes its operation as well as its functionality based on a graphical user interface, and presents the results of tests that have been conducted to optimize its performance.

Authors: Leitao, Jorge; Ferreira, Anibal J. S.; Fernandes, Gabriel
Affiliations: FEUP, Porto, Portugal ; INESC Porto, Porto, Portugal ; DEEC, FCTUC, Coimbra, Portugal(See document for exact affiliation information.)
AES Convention: 116 (May 2004) Paper Number: 6100
Publication Date: May 1, 2004
Session Subject: Room and Architectural Acoustics; Musical Acoustics

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