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

Resultado de pesquisarevisão de pares

Resumo

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.
Idioma originalEnglish
Título da publicação do anfitrião2016 12th IEEE International Conference on Industry Applications, INDUSCON 2016
EditoraInstitute of Electrical and Electronics Engineers Inc.
Número de páginas6
ISBN (eletrónico)9781509051274
DOIs
Estado da publicaçãoPublicado - 8 mar. 2017
Publicado externamenteSim
Evento12th IEEE International Conference on Industry Applications, INDUSCON 2016 - Curitiba
Duração: 20 nov. 201623 nov. 2016

Conferência

Conferência12th IEEE International Conference on Industry Applications, INDUSCON 2016
País/TerritórioBrazil
CidadeCuritiba
Período20/11/1623/11/16

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