Title
OVERT SPEECH RETRIEVAL FROM NEUROMAGNETIC SIGNALS USING WAVELETS AND ARTIFICIAL NEURAL NETWORKS
Abstract
Speech production involves the synchronization of neural activity between the speech centers of the brain and the oral-motor system, allowing for the conversion of thoughts into meaningful sounds. This hierarchical mechanism is hindered due to partial or complete paralysis of the articulators for patients suffering from locked-in-syndrome. These patients are in dire need of effective brain-communication interfaces (BCIs), which can at least provide a level of communication assistance. In this study, we tried to decode overt (loud) speech directly from the brain via non-invasive magnetoen-cephalography (MEG) signals to build the foundation for a faster, direct brain to text mapping BCI. A shallow Artificial Neural Network (ANN) was trained with wavelet features of the MEG signals for this objective. Experimental results show that a direct speech decoding is possible from MEG signals. Moreover, we found that the jaw motion and MEG signals may have complimentary information for speech decoding.
Year
DOI
Venue
2018
10.1109/GlobalSIP.2018.8646401
2018 IEEE Global Conference on Signal and Information Processing (GlobalSIP)
Keywords
Field
DocType
Magnetoencephalography,wavelet,speech production,artificial neural network
Synchronization,Computer science,Direct speech,Brain–computer interface,Speech recognition,Decoding methods,Artificial neural network,Speech production,Magnetoencephalography,Wavelet
Conference
ISSN
ISBN
Citations 
2376-4066
978-1-7281-1295-4
1
PageRank 
References 
Authors
0.37
0
4
Name
Order
Citations
PageRank
Debadatta Dash121.42
Paul Ferrari222.44
Saleem Malik320.75
Jun Wang414415.26