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

ISI Web of Knowledge - 0 Citações

Outras Informações

ID Authenticus: P-00M-ZWA

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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6