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Effect Of Voiced Consonants On Emg Signals Generated In Zygomaticus Muscles
HIMANSHU RAINA, RANDHIR SINGH, PARVEEN LEHANA M.Tech, Department ECE, Shri Sai College of Engineering and Technology, Pathankot, India HOD, Dept ECE, Shri Sai College of Engineering and Technology, Pathankot, India Associate Professor, Dept of Physics and Electronics, University of Jammu, India
Abstract: Speech is natural form of communication between human. Speech signals are non stationery signals. During speech generation contraction and relaxation of the muscles are controlled by the nervous system. This action generates one of the biomedical signals known as EMG. These signals are complicated and depend upon the anatomical and physiological properties of muscles. Facial EMG is recorded for speech recognition and system automation. EMG signals are generally recorded using small surface electrodes placed near to each other. EMG activity is frequently recorded from specific muscles and plays a prominent role in the expression of elementary emotions and speech generation. The present research paper investigates the EMG patterns generated during the utterance of the unvoiced consonants. Six subjects in the age of 20-25 years were taken (three males and three females). Thirty eight vowel-consonant-vowel (VCV) syllables in Hindi were recorded along with the corresponding facial EMG signal. For each speaker, the means of log-spectral-distances (LSD) between the EMG signal of the VCVs and the reference EMG signal were computed. Analysis of the spectrograms and LSD showed that the EMG signals generated in the muscle vary with the subject and the VCV. Female subjects showed high value in standard deviation and mean value calculated for EMG signal. Hence, for automatic decoding of the EMG signals, the system should be trained using both the variants.
[1] HIMANSHU RAINA, RANDHIR SINGH, PARVEEN LEHANA M.Tech, Department ECE, Shri Sai College of Engineering and Technology, Pathankot, India HOD, Dept ECE, Shri Sai College of Engineering and Technology, Pathankot, India Associate Professor, Dept of Physics and Electronics, University of Jammu, India, “Effect Of Voiced Consonants On Emg Signals Generated In Zygomaticus Muscles,” International Journal of Advanced Research in Computer and Communication Engineering (IJARCCE)
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