本文選題：三合元音 + 共振峰動態(tài)特征��； 參考：《清華大學學報(自然科學版)》2017年09期

【摘要】：該文以30位18至28歲的男性被試為對象,在快速、中速和慢速3種語速條件下,對漢語普通話中4個三合元音(/iau/、/iou/、/uai/、/uei/)共振峰的動態(tài)特征進行了量化分析。運用三次多項式擬合方法描述前3條共振峰的動態(tài)軌跡,以擬合系數(shù)為自變量,對共振峰的動態(tài)特征進行了判別分析。結(jié)果表明:相同語速語音比對時,語速不同,判別能力也不同,快速發(fā)音的判別能力最高(平均為76.7%),中速和慢速發(fā)音的判別能力相對較低(分別為69.5%、70.3%)。不同語速語音組合比對時,各三合元音的判別能力均有所下降,其中"快+慢"組合的判別效果最差(平均為48.0%)。所有的語速條件下,判別能力最高的三合元音均為/iau/。由此可知,語速相同或相近時,三合元音的共振峰動態(tài)特征可以有效區(qū)分不同說話人。
[Abstract]:In this paper, 30 male subjects aged 18 to 28 were selected to quantitatively analyze the dynamic characteristics of the resonance peaks of the four trizygous vowels in Chinese Putonghua under the conditions of rapid, medium and slow speech rates, i.e., the / uai / ueir / r / u / v / r / ueir / r. The cubic polynomial fitting method is used to describe the dynamic trajectories of the first three resonance peaks. The dynamic characteristics of the resonance peaks are analyzed by using the fitting coefficients as independent variables. The results showed that when the speech speed was different at the same speed, the discriminant ability was also different. The discriminant ability of rapid pronunciation was the highest (average 76.7g), while that of medium and slow pronunciation was relatively low (69.5% 70.3%, respectively). In the comparison of different speech speeds, the discriminant ability of the three vowels decreased, among which the "fast and slow" combination had the worst discriminant effect (the average was 48.0%). Under all the speed conditions, the highest discriminant trimeric vowel was / iau / r. It can be concluded that the dynamic characteristics of the resonance peak of the three vowels can effectively distinguish the different speakers when the speech speed is the same or similar.
【作者單位】： 司法文明協(xié)同創(chuàng)新中心;證據(jù)科學教育部重點實驗室(中國政法大學);智能語音技術(shù)公安部重點實驗室;北京市朝陽區(qū)監(jiān)察委員會;公安部物證鑒定中心;
【基金】：智能語音技術(shù)公安部重點實驗室開放課題項目(2014ISTKFKT1)
【分類號】：H017

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