This paper presents a new method to the adaptive cancellation of acoustic feedbacks. The method uses high resolution frequency analysis and high-Q notch filters so as to accurately detect feedbacks and cancel them without disturbing noticeably the main audio spectrum. The method will be described, its implementation on a TMS320C6711 DSP platform for real time operation will be explained, and results for the adaptive cancellation of two simultaneous acoustic feedbacks will be presented.

Authors: Ferreira, Anibal J. S.; Rocha, Ariel
Affiliations: INESC Porto; University of Porto(See document for exact affiliation information.)
AES Convention: 118 (May 2005) Paper Number: 6335
Publication Date: May 1, 2005 Import into BibTeX
Subject: Signal Processing
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=13051

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