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

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2016

Autores

Bispo, BC (Autor) Outra; Moutinho, JN (Autor) Outra; Rodrigues, PML (Autor) Outra; Freitas, DRS (Autor) Outra

Ata de Conferência Internacional

Título: 2016 12th IEEE International Conference on Industry Applications, INDUSCON 2016

12th IEEE International Conference on Industry Applications, INDUSCON 2016

20 November 2016 through 23 November 2016

Indexação

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00M-NKB

DOI: 10.1109/induscon.2016.7874522

Abstract (EN): 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. © 2016 IEEE.

Idioma: Inglês

Tipo (Avaliação Docente): Científica