Analysis of additional stable gain by frequency shifting for acoustic feedback suppression using statistical room acoustics

Journal article
(Letter)


Publication Details

Author(s): Zheng C, Hofmann C, Li X, Kellermann W
Journal: IEEE Signal Processing Letters
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Publication year: 2016
Volume: 23
Journal issue: 1
Pages range: 159-163
ISSN: 1070-9908
Language: English


Abstract

Currently, a quantitative prediction of the performance of the frequency shifting (FS) approach for stabilizing acoustic feedback loops of public address (PA) systems is only
possible in case of negligibly small direct sound components in the feedback path. By employing a statistical room acoustics model, this letter derives a novel analyti
cal expression for the additional stable gain (ASG) with the FS approach. This allows a quantitative prediction of the performance of FS in the presence of significant direct sound components for the first time. Simulation results confirm the theoretical analysis.


FAU Authors / FAU Editors

Hofmann, Christian
Professur für Nachrichtentechnik
Kellermann, Walter Prof. Dr.-Ing.
Professur für Nachrichtentechnik


How to cite

APA:
Zheng, C., Hofmann, C., Li, X., & Kellermann, W. (2016). Analysis of additional stable gain by frequency shifting for acoustic feedback suppression using statistical room acoustics. IEEE Signal Processing Letters, 23(1), 159-163. https://dx.doi.org/10.1109/LSP.2015.2507205

MLA:
Zheng, Chengshi, et al. "Analysis of additional stable gain by frequency shifting for acoustic feedback suppression using statistical room acoustics." IEEE Signal Processing Letters 23.1 (2016): 159-163.

BibTeX: 

Last updated on 2018-16-10 at 16:40

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