In this paper, we describe an experiment to evolve oral tract (mouth) shapes for a set of vowels for two adult males. Target vowels were recorded in an acoustically anechoic room along with the output from an electrolaryngograph, which monitors vocal fold vibrations electrically via two electrodes placed externally on the neck of the speaker at larynx level. Physical modelling digital waveguide synthesis using a two dimensional virtual oral tract was employed in the experiments. A population of 50 randomly shaped oral tracts were set up at the start of the evolution procedure, and the fitness of each was tested with respect to each of the target vowels. The resulting vowels are compared spectrally alongside the evolved oral tract shapes. The results for open vowels were close to the targets whereas those for close vowels were not. It is suggested that this is because of the associated narrow constriction to which special attention needs to be paid in the future.
机译:印度英语元音不同条件的声带形状变异性分析
机译:基于共振峰频率比的印度英语使用者在元音不同条件下的人声道形状变异性分析
机译:元音和辅音对声道形状的贡献
机译:成年男性口腔道形状的演变,关闭和开放元音
机译:成人语音提示异常粗糙声音产生的声音和句型的声音频谱噪声等级和粗糙程度等级。
机译:元音和辅音对声道形状的贡献
机译:封闭和开放元音的成年男性口腔道形状的演变
机译:声带长度对元音的归一化及其在元音识别中的应用。