本文選題：構(gòu)音障礙 + 語音分析��； 參考：《天津大學(xué)》2014年碩士論文

【摘要】：本文基于TORGO數(shù)據(jù)庫,通過對(duì)比分析構(gòu)音障礙說話人和正常說話人的EMA數(shù)據(jù),研究了構(gòu)音障礙的發(fā)音空間特征和聲學(xué)特征。相比單獨(dú)分析聲學(xué)信號(hào)的方法,直接測量發(fā)音位置有助于更準(zhǔn)確地找出構(gòu)音障礙的發(fā)音機(jī)制。本研究利用統(tǒng)計(jì)學(xué)的方法,基于連續(xù)語音狀態(tài)下記錄的英語EMA數(shù)據(jù),比較了構(gòu)音障礙語音和正常語音的區(qū)別,從發(fā)音和聲學(xué)兩個(gè)方面調(diào)查分析了構(gòu)音障礙的特征。通過計(jì)算每個(gè)目標(biāo)音素的發(fā)音位置點(diǎn)的分布,發(fā)現(xiàn)構(gòu)音障礙的發(fā)音區(qū)域比正常區(qū)域的面積相對(duì)較小,并且發(fā)音位置更靠近口腔前部,這說明了構(gòu)音障礙說話人的發(fā)音位置異常,難以像正常說話人一樣充分利用發(fā)音空間。在聲學(xué)分析方面,利用自相關(guān)函數(shù)、功率譜和線性預(yù)測分析的方法,分析了構(gòu)音障礙語音的韻律、節(jié)奏和聲源特征。結(jié)果表明正常說話人在重復(fù)輔音-元音序列時(shí),可以保持穩(wěn)定的節(jié)奏和能量,但是構(gòu)音障礙說話人卻很難保持發(fā)音的穩(wěn)定性。同時(shí),構(gòu)音障礙的聲源信號(hào)顯示出不穩(wěn)定的基音周期,反映了構(gòu)音障礙說話人對(duì)聲門運(yùn)動(dòng)控制不佳。
[Abstract]:Based on the TORGO database, this paper studies the spatial and acoustic characteristics of dysarthria by comparing and analyzing the EMA data of the speaker with dysarthria and the normal speaker. Compared with the method of analyzing acoustic signals alone, measuring the pronunciation position directly helps to find out the articulation mechanism of dysarthria more accurately. Based on the English EMA data recorded in the continuous speech state, this study compared the differences between dysarthria speech and normal speech, and investigated and analyzed the characteristics of dysarthria from two aspects: pronunciation and acoustics. By calculating the location distribution of each target phoneme, it is found that the area of articulation disorder is smaller than that of normal area, and the pronunciation position is closer to the anterior part of the mouth, which indicates that the articulation position of the speaker with dysarthria is abnormal. It is difficult to make full use of pronunciation space as a normal speaker. In the aspect of acoustic analysis, the prosody, rhythm and source characteristics of dyslexic speech are analyzed by means of autocorrelation function, power spectrum and linear predictive analysis. The results show that the normal speaker can maintain stable rhythm and energy when repeating consonant vowel sequence, but it is difficult for the speaker with dysarthria to maintain the stability of pronunciation. At the same time, the sound source signal of dysarthria shows unstable pitch period, which reflects the poor control of glottic movement by the speaker of dysarthria.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：R767.92;TN912.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 侯梅,于榮,趙榮安,李淑秋,郭洪磊;腦癱兒童的語言特征初探[J];中華物理醫(yī)學(xué)與康復(fù)雜志;2003年04期

2 侯梅,趙榮安,李玉堂,李淑秋,蘭坤;腦癱患兒構(gòu)音障礙特點(diǎn)與言語治療[J];中國康復(fù);1999年02期

3 汪潔;構(gòu)音障礙綜合性評(píng)價(jià)量表的編制[J];中國康復(fù)醫(yī)學(xué)雜志;1998年06期

4 李勝利;;構(gòu)音障礙的評(píng)價(jià)[J];中國康復(fù);1993年02期

，

本文編號(hào)：1915589