|
KMID : 1022420190110040045
|
|
Phonetics and Speech Sciences
2019 Volume.11 No. 4 p.45 ~ p.53
|
|
|
A study on the voiceless plosives from the English and Korean spontaneous speech corpus
|
|
Yoon Kyu-Chul
|
|
|
Abstract
|
|
|
|
The purpose of this work was to examine the factors affecting the identities of the voiceless plosives, i.e. English [p, t, k] and Korean [ph, th, kh], from the spontaneous speech corpora. The factors were automatically extracted by a Praat script and the percent correctness of the discriminant analyses was incrementally assessed by increasing the number of factors used in predicting the identities of the plosives. The factors included the spectral moments and tilts of the plosive release bursts, the post-burst aspirations and the vowel onsets, the durations such as the closure durations and the voice onset times (VOTs), the locations within words and utterances and the identities of the following vowels. The results showed that as the number of factors increased up to five, so did the percent correctness of the analyses, resulting in 74.6% for English and 66.4% for Korean. However, the optimal number of factors for the maximum percent correctness was four, i.e. the spectral moments and tilts of the release bursts and the following vowels, the closure durations and the VOTs. This suggests that the identities of the voiceless plosives are mostly determined by their internal and vowel onset cues.
|
|
|
KEYWORD
|
|
|
Seoul corpus, Buckeye corpus, Korean, English, plosives, moment, spectral tilt, discriminant analysis
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|