Murtola , T , Malinen , J , Geneid , A & Alku , P 2019 , ' Analysis of phonation onsets in vowel production, using information from glottal area and flow estimate ' , Speech Communication , vol. 109 , pp. 55-65 . https://doi.org/10.1016/j.specom.2019.03.007
Title: | Analysis of phonation onsets in vowel production, using information from glottal area and flow estimate |
Author: | Murtola, Tiina; Malinen, Jarmo; Geneid, Ahmed; Alku, Paavo |
Contributor organization: | Staff Services HUS Head and Neck Center Korva-, nenä- ja kurkkutautien klinikka University of Helsinki |
Date: | 2019-05 |
Language: | eng |
Number of pages: | 11 |
Belongs to series: | Speech Communication |
ISSN: | 0167-6393 |
DOI: | https://doi.org/10.1016/j.specom.2019.03.007 |
URI: | http://hdl.handle.net/10138/313896 |
Abstract: | A multichannel dataset comprising high-speed videoendoscopy images, and electroglottography and free-field microphone signals, was used to investigate phonation onsets in vowel production. Use of the multichannel data enabled simultaneous analysis of the two main aspects of phonation, glottal area, extracted from the high-speed videoendoscopy images, and glottal flow, estimated from the microphone signal using glottal inverse filtering. Pulse-wise parameterization of the glottal area and glottal flow indicate that there is no single dominant way to initiate quasi-stable phonation. The trajectories of fundamental frequency and normalized amplitude quotient, extracted from glottal area and estimated flow, may differ markedly during onsets. The location and steepness of the amplitude envelopes of the two signals were observed to be closely related, and quantitative analysis supported the hypothesis that glottal area and flow do not carry essentially different amplitude information during vowel onsets. Linear models were used to predict the phonation onset times from the characteristics of the subsequent steady phonation. The phonation onset time of glottal area was found to have good predictability from a combination of the fundamental frequency and the normalized amplitude quotient of the glottal flow, as well as the gender of the speaker. For the phonation onset time of glottal flow, the best linear model was obtained using the fundamental frequency and the normalized amplitude quotient of the glottal flow as predictors. |
Subject: |
Phonation onset
Vowel production High-speed videoendoscopy Glottal inverse filtering INVERSE FILTERING ANALYSIS FUNDAMENTAL-FREQUENCY VOICE SOURCE AIR-FLOW FEMALE PRESSURE SPEECH VOLUME PITCH 6121 Languages |
Peer reviewed: | Yes |
Usage restriction: | openAccess |
Self-archived version: | publishedVersion |
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