Feature Articles: Progress in the Study of Filled Pauses
Comparison of Voice Quality between the Vowels in Filled Pauses and Ordinary Lexical Items
2017 Volume 21 Issue 3 Pages 53-62
Details
2017 Volume 21 Issue 3 Pages 53-62
Acoustic differences between the vowels in filled pauses and ordinary lexical items such as nouns were examined to know if there was systematic difference of voice quality. Statistical test of material from the CSJ-Core showed that, in most cases, there was significant difference of acoustic features including F0, F1, F2, intensity, jitter, shimmer, spectral tilt, H1-A3, and duration between the two vowel classes. Random forests analysis revealed that, on average, F-value of about 0.8 could be obtained based on open data. In addition to duration, intensity, F0, and F1 were the most important for the classification, and jitter and H1-related indices made a secondary contribution.
