Optimization for Parameters of a Vocal Tract Model Based on Simulated Annealing Algorithm

摘要：

Vocal tract can be modeled by analyzing the speech signals. The accuracy of this method depends on specifying and optimizing the articulatory parameters properly. A kind of vocal tract model, which is described in a midsagittal plane, generally contains 8 12 articulatory parameters, which have close relations with the acoustic formants. Calculating the first four formants frequency according to these articulatory parameters is in order to make mean error between natural formant and model formant as small as possible. It is a combinatorial optimization problem. This problem can be solved by simulated annealing algorithm. Mermelstein’s model is a midsagittal vocal tract outline, which can match the X-ray tracings. This paper chooses an improved Mermelstein’s model, proposed a method for optimizing the articulatory parameters based on simulated annealing algorithm in MATLAB. The results of experimentation show this method is effective.

作者: Zaoming Huang Lincan Zhou Boyu Si Ning Li

作者单位: Key Laboratory of Speech and Hearing Science Ministry of Education, ECNU

会议类型: 国际会议

会议名称: 第十届中国虚拟现实年会

会议地点: 上海

会议语种:英文

页码: 324-328

在线出版日期: 2010-10-20（万方平台首次上网日期，不代表论文的发表时间）