Assessing the cepstrum-based acoustic feedback cancellation method for short acoustic paths

Bruno C. Bispo; Joao N. Moutinho; Pedro M. L. Rodrigues; Diamantino R. S. Freitas

doi:10.1109/INDUSCON.2016.7874522

Assessing the cepstrum-based acoustic feedback cancellation method for short acoustic paths

Bruno C. Bispo, Joao N. Moutinho, Pedro M. L. Rodrigues, Diamantino R. S. Freitas

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Acoustic feedback limits the maximum stable gain of sound reinforcement systems. Acoustic feedback cancellation methods that use the traditional gradient-based or least-squares-based adaptive filtering algorithms present a bias in the feedback path estimate if no decorrelation algorithm is used. This work evaluates the recently proposed AFC-CE method, which estimates the feedback path impulse response from the cepstrum of the error signal, in a situation of short acoustic paths such as the ones that occur in hearing aid applications. Simulation results showed that the AFC-CE method is able to increase the maximum stable gain by 251 dB while keeping a good sound quality.

Original language	English
Title of host publication	2016 12th IEEE International Conference on Industry Applications, INDUSCON 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Number of pages	6
ISBN (Electronic)	9781509051274
DOIs	https://doi.org/10.1109/INDUSCON.2016.7874522
Publication status	Published - 8 Mar 2017
Externally published	Yes
Event	12th IEEE International Conference on Industry Applications, INDUSCON 2016 - Curitiba, Brazil Duration: 20 Nov 2016 → 23 Nov 2016

Conference

Conference	12th IEEE International Conference on Industry Applications, INDUSCON 2016
Country/Territory	Brazil
City	Curitiba
Period	20/11/16 → 23/11/16

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10.1109/INDUSCON.2016.7874522

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Bispo, B. C., Moutinho, J. N., Rodrigues, P. M. L., & Freitas, D. R. S. (2017). Assessing the cepstrum-based acoustic feedback cancellation method for short acoustic paths. In 2016 12th IEEE International Conference on Industry Applications, INDUSCON 2016 Article 7874522 Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INDUSCON.2016.7874522

@inproceedings{8c61af52ace544929336512f0bea869b,

title = "Assessing the cepstrum-based acoustic feedback cancellation method for short acoustic paths",

abstract = "Acoustic feedback limits the maximum stable gain of sound reinforcement systems. Acoustic feedback cancellation methods that use the traditional gradient-based or least-squares-based adaptive filtering algorithms present a bias in the feedback path estimate if no decorrelation algorithm is used. This work evaluates the recently proposed AFC-CE method, which estimates the feedback path impulse response from the cepstrum of the error signal, in a situation of short acoustic paths such as the ones that occur in hearing aid applications. Simulation results showed that the AFC-CE method is able to increase the maximum stable gain by 251 dB while keeping a good sound quality.",

author = "Bispo, {Bruno C.} and Moutinho, {Joao N.} and Rodrigues, {Pedro M. L.} and Freitas, {Diamantino R. S.}",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.; 12th IEEE International Conference on Industry Applications, INDUSCON 2016 ; Conference date: 20-11-2016 Through 23-11-2016",

year = "2017",

month = mar,

day = "8",

doi = "10.1109/INDUSCON.2016.7874522",

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Bispo, BC, Moutinho, JN, Rodrigues, PML & Freitas, DRS 2017, Assessing the cepstrum-based acoustic feedback cancellation method for short acoustic paths. in 2016 12th IEEE International Conference on Industry Applications, INDUSCON 2016., 7874522, Institute of Electrical and Electronics Engineers Inc., 12th IEEE International Conference on Industry Applications, INDUSCON 2016, Curitiba, Brazil, 20/11/16. https://doi.org/10.1109/INDUSCON.2016.7874522

Assessing the cepstrum-based acoustic feedback cancellation method for short acoustic paths. / Bispo, Bruno C.; Moutinho, Joao N.; Rodrigues, Pedro M. L. et al.
2016 12th IEEE International Conference on Industry Applications, INDUSCON 2016. Institute of Electrical and Electronics Engineers Inc., 2017. 7874522.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Assessing the cepstrum-based acoustic feedback cancellation method for short acoustic paths

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AU - Rodrigues, Pedro M. L.

AU - Freitas, Diamantino R. S.

PY - 2017/3/8

Y1 - 2017/3/8

N2 - Acoustic feedback limits the maximum stable gain of sound reinforcement systems. Acoustic feedback cancellation methods that use the traditional gradient-based or least-squares-based adaptive filtering algorithms present a bias in the feedback path estimate if no decorrelation algorithm is used. This work evaluates the recently proposed AFC-CE method, which estimates the feedback path impulse response from the cepstrum of the error signal, in a situation of short acoustic paths such as the ones that occur in hearing aid applications. Simulation results showed that the AFC-CE method is able to increase the maximum stable gain by 251 dB while keeping a good sound quality.

AB - Acoustic feedback limits the maximum stable gain of sound reinforcement systems. Acoustic feedback cancellation methods that use the traditional gradient-based or least-squares-based adaptive filtering algorithms present a bias in the feedback path estimate if no decorrelation algorithm is used. This work evaluates the recently proposed AFC-CE method, which estimates the feedback path impulse response from the cepstrum of the error signal, in a situation of short acoustic paths such as the ones that occur in hearing aid applications. Simulation results showed that the AFC-CE method is able to increase the maximum stable gain by 251 dB while keeping a good sound quality.

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DO - 10.1109/INDUSCON.2016.7874522

M3 - Conference contribution

BT - 2016 12th IEEE International Conference on Industry Applications, INDUSCON 2016

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 12th IEEE International Conference on Industry Applications, INDUSCON 2016

Y2 - 20 November 2016 through 23 November 2016

ER -

Assessing the cepstrum-based acoustic feedback cancellation method for short acoustic paths

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