Integrated speech enhancement for functional MRI environment

Author

Pathak, Nishank ; Milani, Ali A. ; Panahi, Issa ; Briggs, Richard

Author_Institution

Univ. of Texas at Dallas, Richardson, TX, USA

fYear

2009

fDate

3-6 Sept. 2009

Firstpage

2474

Lastpage

2477

Abstract

This paper presents an integrated speech enhancement (SE) method for the noisy MRI environment. We show that the performance of SE system improves considerably when the speech signal dominated by MRI acoustic noise at very low SNR is enhanced in two successive stages using two-channel SE methods followed by a single-channel post processing SE algorithm. Actual MRI noisy speech data are used in our experiments showing the improved performance of the proposed SE method.

Keywords

acoustic noise; adaptive filters; biomedical MRI; medical signal processing; speech enhancement; MRI acoustic noise; MRI noisy speech data; SE system performance; adaptive filtering stage; functional MRI environment; integrated speech enhancement; single-channel post processing SE algorithm; two-channel SE methods; Acoustics; Algorithms; Auditory Perception; Equipment Design; Humans; Magnetic Resonance Imaging; Movement; Noise; Sound; Speech; Speech Acoustics; Speech Perception;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE

Conference_Location

Minneapolis, MN

ISSN

1557-170X

Print_ISBN

978-1-4244-3296-7

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2009.5334798

Filename

5334798