Factors Influencing Voice Onset Time (VOT): Voice Recognition
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 10
Abstract
In this paper we study the methods to evaluate the features which might estimate the closeness of acoustic signals. For measuring Voice onset time, we were considered 3 stop consonants in word- initial position and two abutted vowels /a/ and /i/. These 3 stop consonants were divided into: Voiced (/b, ɖ, g /) and Voiceless (/p, ʈ, k /) categories. The utterances were acoustically analyzed via PRAAT. The VOT values of the target stops were obtained from the waveform and verified with the spectrogram. As for the spectrographic readings, VOT intervals from the beginning of the release burst to the onset of voicing were analyzed. It has been found that voice- onset time for voiceless consonants is larger than the voiced consonants. Further, VOT get changed with effect of place on articulation .It has been found that Velar has largest VOT following in descending order by Alveolar and Labial. In addition to it, effect of vowel height on voice onset time was studied, which reveal that High vowel /i/ have larger voice- onset time than Low vowel /a/.
Authors and Affiliations
Jasdeep Kaur
Keywords
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