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

• Type: Article in International Conference Proceedings Book
• Date: 2016

Authors

Bispo, BC (Author) Other; Moutinho, JN (Author) Other; Rodrigues, PML (Author) Other; Freitas, DRS (Author) Other

Conference proceedings International

Title: 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

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific