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Nonlinear interactive source-filter models for speech

机译：语音的非线性交互式源滤波器模型

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摘要

The linear source-filter model of speech production assumes that the source of the speech sounds is independent of the filter. However, acoustic simulations based on the physical speech production models show that when the fundamental frequency of the source harmonics approaches the first formant of the vocal tract filter, the filter has significant effects on the source due to the nonlinear coupling between them. In this study, two interactive system models are proposed under the quasi steady Bernoulli flow and linear vocal tract assumptions. An algorithm is developed to estimate the model parameters. Glottal flow and the linear vocal tract parameters are found by conventional methods. Rosenberg model is used to synthesize the glottal waveform. A recursive optimization method is proposed to find the parameters of the interactive model. Finally, glottal flow produced by the nonlinear interactive system is computed. The experimental results show that the interactive system model produces fine details of glottal flow source accurately.
机译：语音产生的线性源滤波器模型假定语音的源与滤波器无关。但是，基于物理语音产生模型的声学模拟显示，当源谐波的基频接近声道滤波器的第一个共振峰时，由于它们之间的非线性耦合，滤波器会对源产生重大影响。在这项研究中，在准稳态伯努利流和线性声道假设下，提出了两个交互式系统模型。开发了一种算法来估计模型参数。通过常规方法可以找到声门血流和线性声道参数。 Rosenberg模型用于合成声门波形。提出了一种递归优化方法来寻找交互式模型的参数。最后，计算了非线性相互作用系统产生的声门流。实验结果表明，交互式系统模型能够准确地产生声门流源的细微细节。

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  • 来源
    《Computer speech and language》 |2016年第3期|365-394|共30页
  • 作者

    Turgay Koc; Tolga Ciloglu;

  • 作者单位

    Department of Electronic Communication Engineering, Sueleyman Demirel University, 32000 Isparta, Turkey,Department of Electrical and Electronics Engineering, Middle East Technical University, 06800 Ankara, Turkey;

    Department of Electrical and Electronics Engineering, Middle East Technical University, 06800 Ankara, Turkey;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Speech production; Source-filter theory; Source-filter interaction; Speech modeling;

    机译：语音制作;源滤波器理论;源过滤器交互;语音建模;

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