Title: An All-Frequency-Domain Adaptive Filter with PEM-Based Decorrelation for Acoustic Feedback Control
Authors: Bernardi, Giuliano
van Waterschoot, Toon
Wouters, Jan
Moonen, Marc
Issue Date: Oct-2015
Publisher: IEEE Press
Host Document: 2015 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics pages:1-5
Conference: WASPAA 2015 location:New Paltz, NY date:18-21 October 2015
Abstract: A new method for acoustic feedback control is derived, combining an adaptive filter with a decorrelation strategy based on the prediction-error method (PEM) entirely in the frequency domain. This all-frequency-domain method extends existing methods combining a frequency-domain adaptive filter (FDAF) and time-domain PEM-based decorrelation. Such a combined approach is critical, since a standard adaptive feedback cancellation (AFC) procedure without proper decorrelation yields biased estimation results and hence does not provide suitable acoustic feedback control. The proposed modification allows to lower the computational complexity of the algorithm, while maintaining comparable performance
Publication status: published
KU Leuven publication type: IC
Appears in Collections:ESAT - STADIUS, Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics
Electrical Engineering (ESAT) TC, Technology Campus Geel
Technologiecluster ESAT Elektrotechnische Engineering
Research Group Experimental Oto-rhino-laryngology

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