Title
Clinical evaluation of the performance of a blind source separation algorithm combining beamforming and independent component analysis in hearing aid use
Abstract
There have been several reports on improved blind source separation algorithms that combine beamforming and independent component analysis. However, none of the prior reports verified the clinical efficacy of such combinational algorithms in real hearing aid situations. In the current study, we evaluated the clinical efficacy of such a combinational algorithm using the mean opinion score and speech recognition threshold tests in various types of real-world hearing aid situations involving environmental noise. Parameters of the testing algorithm were adjusted to match the geometric specifications of the real behind-the-ear type hearing aid housing. The study included 15 normal-hearing volunteers and 15 hearing-impaired patients. Experimental results demonstrated that the testing algorithm improved the speech intelligibility of all of the participants in noisy environments, and the clinical efficacy of the combinational algorithm was superior to either the beamforming or independent component analysis algorithms alone. Despite the computational complexity of the testing algorithm, our experimental results and the rapid enhancement of hardware technology indicate that the testing algorithm has the potential to be applied to real hearing aids in the near future, thereby improving the speech intelligibility of hearing-impaired patients in noisy environments.
Year
DOI
Venue
2013
10.1016/j.specom.2012.11.002
Speech Communication
Keywords
Field
DocType
blind source separation algorithm,noisy environment,real hearing aid,speech intelligibility,independent component analysis,hearing-impaired patient,testing algorithm,clinical efficacy,clinical evaluation,combinational algorithm,hearing aid use,real behind-the-ear type hearing
TIMIT,Beamforming,Hearing aid,Computer science,Algorithm,Speech recognition,Mean opinion score,Independent component analysis,Blind signal separation,Intelligibility (communication),Computational complexity theory
Journal
Volume
Issue
ISSN
55
4
0167-6393
Citations 
PageRank 
References 
2
0.41
18
Authors
8
Name
Order
Citations
PageRank
Kyoung Won Nam132.46
Yoon Sang Ji220.75
Jonghee Han3166.23
Sangmin Lee431.44
Dongwook Kim561.17
Sung Hwa Hong632.46
Dong Pyo Jang7537.04
In Young Kim825032.24