Study of Intensity Features in Voice Identification
Lan Chang-shan · Zhongguo sifa jianding · 2011
Objective To investigate the intensity features in voice identification.Methods Speech samples are collected from 10 male speakers who have similar physical conditions and relative standard voices and tones of Mandarin Chinese.All samples are input into VS-99 phonetics workstation,and the broadband spectrogram of the same syllable of every speaker are compared and analyzed.Results The intensities of the same syllable pronounced by different speakers are usually different and even quite distinct in some cases.Differences are mainly in the time and frequency distribution,the frequency distribution of the transition,the relative intensities among formants,the intensity distribution in a formant,and the formant-to-formant intensity.On the other hand,the same syllable pronounced by one speaker shows evident homogeneity in those aspects mentioned above.Conclusion Intensity can serve as a group of features in voice identification.