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KMID : 0917520000070020177
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Journal of Speech Sciences
2000 Volume.7 No. 2 p.177 ~ p.189
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An Analysis of Phonetic Parameters for Individual Speakers
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Abstract
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This paper investigates how individual speakers´ speech can be distinguished using acoustic parameters such as amplitude, pitch, and formant frequencies. Word samples from fifteen male speakers in their 20´s in three different regions were recorded in two different modes (i.e., casual and clear speech) in quiet settings, and were analyzed with a Praat macro scrip. In order to determine individual speakers´ acoustical values, the total duration of voicing segments was measured in five different timepoints. Results showed that a high correlation coefficient between F_1 and F_2 in formant frequency was found among the the speakers although there was little correlation coefficient between amplitude and pitch. Statistical grouping shows that individual speakers´ voice werenot reflected in regional dialects for both casual and clear speechl. In addition, the difference of maximum and minimum in amplitude was about 10 dB which indicates a perceptually audible degree. These acoustic data can give some meaningful guidelines for implementing algorithms of speaker indentification and speaker verification.
Keywords : Acoustic parameters, Praat, speaker identification, speaker verification
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