Multi-parametric analysis of speech timing in identical twin pairs and cross-pair comparisons

The present data derives from a Ph.D. research on the inter-speaker discriminatory potential of speech timing paramaters in comparisons involving genetically-related and non-genetically related speakers.<br><br>In total, a set of 11 temporal speech parameters were analyzed, including macro, micro, and pause-related temporal parameters, as described below:<br><br>Speech rate (SRATE): defined as the number of V-V units in each speech chunk divided by its total duration (V-V units/second), including silent and filled pauses.<br>Articulation rate I (ARTRATE I): defined as the number of V-V units in each speech chunk divided by its total duration (V-V units/second), excluding only silent pauses.<br>Articulation rate II (ARTRATE II): defined as the number of V-V units contained in each speech chunk divided by its total duration (V-V units/second), excluding silent pauses and lengthened vowels.<br>Stress group duration (SGDUR): defined as the interval corresponding to two consecutive salient V-V units (in second), i.e., those units for which a duration increase has been automatically detected. Each stress group ends with a salient V-V unit.<br>V-V units duration (VVDUR I): syllable-sized units defined as all the segments uttered between two consecutive vowel onsets (in millisecond). Both salient and non-salient V-V units are included in this parameter.<br>V-V units duration (VVDUR II): the aforementioned phonetic unit corresponding solely to non-salient V-V units (in millisecond), represented by those units for which a duration increase has not been automatically detected.<br>Vowel duration (VOWEL DUR): defined as the duration of produced oral monophthongs (in millisecond).<br>Silent pauses duration (SILPAUSES): silent pauses (in millisecond) equal or superior to 100 ms, a threshold commonly applied in automatic measurements, as to prevent occlusion phases of plosives from being counted.<br>Filled pauses (FILPAUSES): defined as vowel prolongations equal or superior to 100 ms, perceived as hesitations/filled pauses (in millisecond).<br>All pauses (ALLPAUSES): combination of silent and filled pauses (in millisecond), i.e., lengthened vowels before silent pauses or in hesitations.<br>Inter-silent pauses intervals (IPI): defined as the interval comprising the speech production between two consecutive silent pauses (in second).

本数据集源自一项博士研究，该研究聚焦于语音时序参数在有遗传关联与无遗传关联说话者对比中的说话人区分潜力。

本次研究共分析了11项语音时序参数，涵盖宏观、微观及与停顿相关的时序参数，详述如下：

语速（Speech rate, SRATE）：定义为每个语音块内元音-元音（V-V）单元总数除以该块总时长（单位：V-V单元/秒），包含无声停顿与填充停顿。
发音速率I（Articulation rate I, ARTRATE I）：定义为每个语音块内V-V单元总数除以该块总时长（单位：V-V单元/秒），仅排除无声停顿。
发音速率II（Articulation rate II, ARTRATE II）：定义为每个语音块内V-V单元总数除以该块总时长（单位：V-V单元/秒），同时排除无声停顿与时长延长的元音。
重音组时长（Stress group duration, SGDUR）：定义为两个连续显著V-V单元之间的间隔（单位：秒），即经自动检测存在时长增加的单元，每个重音组以一个显著V-V单元作为结束。
V-V单元时长I（V-V units duration, VVDUR I）：以音节级单元为定义，指两个连续元音起始点之间的所有发声片段（单位：毫秒），涵盖显著与非显著V-V单元。
V-V单元时长II（V-V units duration, VVDUR II）：仅对应非显著V-V单元的上述语音学单元（单位：毫秒），即经自动检测未出现时长增加的单元。
元音时长（Vowel duration, VOWEL DUR）：定义为产出的口腔单元音的时长（单位：毫秒）。
无声停顿时长（Silent pauses duration, SILPAUSES）：指时长大于等于100毫秒的无声停顿（单位：毫秒），该阈值为自动测量中的通用标准，用于避免将塞音的闭塞阶段误计为停顿。
填充停顿（Filled pauses, FILPAUSES）：定义为时长大于等于100毫秒的元音延长现象，主观上可感知为犹豫/填充停顿（单位：毫秒）。
总停顿时长（All pauses, ALLPAUSES）：无声停顿与填充停顿的总和（单位：毫秒），即无声停顿前或犹豫阶段的时长延长元音。
无声停顿间隔（Inter-silent pauses intervals, IPI）：定义为两个连续无声停顿之间的语音产出间隔（单位：秒）。