Performance analysis of approximate Affine Projection Algorithm in acoustic feedback cancellation

Author

Nikjoo S., Mohammad ; Seyedi, Amir ; Tehrani, Arash Saber

Author_Institution

Department of Electrical and Computer Engineering, University of Toronto, ON M5S 1A1, Canada

fYear

2008

fDate

20-25 Aug. 2008

Firstpage

258

Lastpage

261

Abstract

Acoustic feedback is an annoying problem in several audio applications and especially in hearing aids. Adaptive feedback cancellation techniques have attracted recent attention and show great promise in reducing the deleterious effects of feedback. In this paper, we investigated the performance of a class of adaptive feedback cancellation algorithms viz. the approximated Affine Projection Algorithms (APA). Mixed results were obtained with the natural speech and music data collected from five different commercial hearing aids in a variety of sub-oscillatory and oscillatory feedback conditions. The performance of the approximated APA was significantly better with music stimuli than natural speech stimuli.

Keywords

Acoustic applications; Auditory system; Digital signal processing; Feedback; Hearing aids; Loudspeakers; Microphones; Natural languages; Performance analysis; Projection algorithms; Algorithms; Artifacts; Computer-Aided Design; Equipment Design; Equipment Failure Analysis; Feedback; Hearing Aids; Noise; Reproducibility of Results; Sensitivity and Specificity; Sound Spectrography;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE

Conference_Location

Vancouver, BC

ISSN

1557-170X

Print_ISBN

978-1-4244-1814-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2008.4649139

Filename

4649139