Title :
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
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;
Conference_Titel :
Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4244-3296-7
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2009.5334798
