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
Subject:
Signal Processing
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