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

Zheng C, Hofmann C, Li X, Kellermann W (2016)


Publication Language: English

Publication Type: Journal article, Letter

Publication year: 2016

Journal

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Book Volume: 23

Pages Range: 159-163

Journal Issue: 1

DOI: 10.1109/LSP.2015.2507205

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 analytical 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.

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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.

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