The measurements reported include spectral properties often used to characterize fricative variation, including: spectrum center of gravity (CoG), spectrum standard deviation (SD), spectrum skew, spectrum kurtosis, maximum amplitude frequency, and maximum amplitude. Each speaker produced 10 repetitions of 90 monosyllabic words beginning with either a velar fricative, /x/, or a labial-dental fricative, /f/. Set parameters (e.g.The data reported in this article are non-coronal fricative measurements from 10 (5 male 5 female) native speakers of Zhongjiang Chinese.For more information, see VOT_examples_noPhone.TextGrid under example_prepopulate.Segment tier should be created in TextGrid files.example_result has result files from get_vot.praat and example wav file.example_prepopulate includes an example TextGrid file for prepopulate.praat.example_getvot includes an example TextGrid file for get_vot.praat.prepopulate.praat adds 'Phone' tier if not exist and prepopulates 'Phone' tier with the equidistant labels (i.e.get_vot.praat is the main VOT procedure script to return VOT, given Praat tiers with appropriate labels.csv file with UTF-8 setting.Īdditional information can be found at the beginning of each procedure. If still some fonts are not appearing properly, use Import option on Excel and import the. There, choose UTF-8 so that the file will open properly in Excel. csv file, go to Praat -> Preferences -> Text writing preferences. csv file can also be created with these values. Positive VOTs will have the label "VOT", while negative VOTs (prevoicing) will have A new tier, "VOT", is created and the VOT measurements are stored there. It will allow the choice of directories and files, as well as segments to beĪnalyzed. Once the "Phone" tier is complete, the second procedure, " get_vot.praat", can be We have found it quicker toĪdjust the boundaries than to have to type the label names many times. These labels can also be entered entirely by hand. To the true locations any unneeded labels can be removed. In Praat, opening the new TextGrid with the Sound files, and adjusting the boundaries Into four equal lengths for the initiation of the labels. The duration of that segment is divided arbitrarily For each segment named, the four intervals are inserted in a new tier, Then, open Praat and run "prepopulate.praat". The default set of symbols expected is "b,d,g,p,t,k", but others Interval tier (default name = "Segment") that labels the segments of interest with IPA To use " prepopulate.praat", create labels for a speech file with, at a minimum, an See Abramson & Whalen (submitted) for details. VLCLO: the voiceless portion of a closureįor later analysis, only REL is required, and it is required even if the release burst is absent (an arbitrarily short interval should be used).One procedure, "prepopulate.praat", takes a Praat TextGrid with segments labeled (interval labels)Īnd prepopulates a new interval tier ("Phone") with labels appropriate for measuring VOT: It also contains example files for the user to explore. Measurement of Voice Onset Time (VOT Lisker & Abramson, 1964 Abramson & Whalen, This directory contains procedures for Praat (Boersma & Weenink, 2009) to assist in the Get_vot VOT procedures for Praat Authors: Jaekoo Kang, D.
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