CAJ | 학술논문

基音轨迹是语音评估中重要的参数，它的高低变化反映了语音的音高起伏和语调韵律特点。为了准确地评估一段语音，利用变长夹角链码（Alterable Included Angle Chain，AIAC）来准确提取说话者的基音轨迹，对比模仿者与标准发音的基音轨迹的相似度，研究基音轨迹相似度的匹配算法及曲线拟合算法，从而完成基音特征相似性的评估。结果表明：该方法不仅能够准确、快捷提取说话者的基音轨迹，而且计算过程简单，操作简便并能够取得良好的评估效果。
기음궤적시어음평고중중요적삼수，타적고저변화반영료어음적음고기복화어조운률특점。위료준학지평고일단어음，이용변장협각련마（Alterable Included Angle Chain，AIAC）래준학제취설화자적기음궤적，대비모방자여표준발음적기음궤적적상사도，연구기음궤적상사도적필배산법급곡선의합산법，종이완성기음특정상사성적평고。결과표명：해방법불부능구준학、쾌첩제취설화자적기음궤적，이차계산과정간단，조작간편병능구취득량호적평고효과。
The pitch fluctuation and intonation rhythm are reflected by the pitch track as an important parameter in the voice similarity. For characterizing pitch curve accurately, this paper optimized the pitch track which is extracted by AIAC (Alterable Included Angle Chain). Based on comparing the similarity of pitch curve between imitator and standard pro-nunciation, the method of extracting pitch curve and matching algorithm of similarity are discussed. And the assessment of pitch characteristics is completed. The results show that the method is simple in calculation process and the results are good.