Paper Info
Title
Velar Movement Assessment for Speech Interfaces: An Exploratory Study Using Surface Electromyography
Abstract
In the literature several silent speech interfaces based on Surface Electromyography (EMG) can be found. However, it is yet unclear if we are able to sense muscles activity related to nasal port opening/closing. Detecting the nasality phenomena, would increase the performance of languages with strong nasal characteristics such as European Portuguese. In this paper we explore the use of surface EMG electrodes, a non-invasive method, positioned in the face and neck regions to explore the existence of useful information about the velum movement. For an accurate interpretation and validation of the proposed method, we use velum movement information extracted from Real-Time Magnetic Resonance Imaging (RT-MRI) data. Overall, results of this study show that differences can be found in the EMG signals for the case of nasal vowels, by sensors positioned below the ear between the mastoid process and the mandible in the upper neck region.
Year
DOI
Venue
2014
10.1007/978-3-319-26129-4_16
BIOMEDICAL ENGINEERING SYSTEMS AND TECHNOLOGIES, BIOSTEC 2014
Keywords
Field
DocType
Velum movement detection,Surface electromyography,Silent speech interfaces
European Portuguese,Data mining,Nasality,Mastoid process,Movement assessment,Computer science,Electromyography,Speech recognition,Speech interface,Nasal vowel,Exploratory research
Conference
Volume
ISSN
Citations 
511
1865-0929
0
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
João Freitas1175.40
João Freitas2175.40
António J. S. Teixeira315235.26
Samuel S. Silva43114.23
Catarina Oliveira5184.47
Miguel Sales Dias613324.96
Miguel Sales Dias713324.96