Title
Detection of psychological stress by analysing of glottal pulse waveform
Abstract
This paper deals with speech signals under psychological stress. The investigation of the speaker's stress is based on statistical analysis of glottal pulses derivative. A pitch synchronous selection of segments from the glottal pulse waveform is used. Selected segments are fixed in their maxima and overlaid. The generated distribution matrix is analysed using special cuts. A new database of speech under stress is created for use in our experiments consisting of data collected during oral final examinations at our university. The database contains read and conversational speech of 31 male speakers, both in neutral and stressed state. The stress recognition rate in the speaker dependent binomial classification (stress/no stress) reaches 88%.
Year
Venue
Keywords
2007
Artificial Intelligence and Applications
psychological stress,male speaker,glottal pulse,speaker dependent binomial classification,speech signal,new database,conversational speech,stress recognition rate,distribution matrix,glottal pulse waveform,speech processing
Field
DocType
Citations 
Speech processing,Matrix (mathematics),Computer science,Waveform,Binomial,Pulse (signal processing),Speech recognition,Maxima,Psychological stress,Statistical analysis
Conference
0
PageRank 
References 
Authors
0.34
3
2
Name
Order
Citations
PageRank
Milan Sigmund1335.96
Tomas Dostál2134.33