Automatic Estimation of Fundamental Frequency Contour Parameters and Automatic Acquisition of Generative rules

基频轮廓参数自动估计及生成规则自动获取

• 批准号: 11480090
• 负责人: FUJISAKI Hiroya
• 金额: $ 7.81万
• 依托单位: Science University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11480090/
• 关键词: generative model of fundamental frequency contours; automatic extraction of parameters of generative model; automatic acquisition of rules for the model's parameters; smoothing of fundamental frequency contour; interpolation of fundamental frequency c

(1) Smoothing and interpolation of measured F_0 contours of read speech of JapaneseMedian-smoothing for removing gross errors of pitch detection, linear interpolation of voiceless intervals, and recursive piecewise approximation of the resulting contour by third-order polynomials, were combined to obtain a mathematical approximation to the measured F_0 contour that is continuous and differentiable everywhere.(2) Automatic estimation of parameters using the derivative of the smoothed F_0 contourFirst-order approximations to the timings and amplitudes of the accent commands were obtained from the derivative of the smoothed F_0 contour, while those of the phrase commands were obtained from the residual. These first-order estimations were then refined by the method of Analysis-by-Synthesis to obtain optimum estimations.(3) Automatic acquisition of rules for prosody generationAutomatic acquisition of rules for prosody generation were investigated. From analysis results of a large amount of speech material obtained by the above-mentioned methods, it was found that a three-level quantization was perceptually acceptable both for the amplitudes of the accent commands and the magnitudes of the phrase commands for synthesis of read speech of Japanese.

(1)日语朗读语音测量F_0轮廓的平滑和内插消除基音检测粗差的中值平滑、清音区间的线性内插和三阶多项式对测量轮廓的递归分段逼近，得到连续且处处可微的测量F_0轮廓的数学逼近。(2)利用平滑后的F_0轮廓的导数自动估计参数由平滑的F_0轮廓的导数得到重音命令的定时和幅度的一阶近似，而短语命令的一阶近似由平滑的F_0轮廓的导数得到。通过综合分析的方法对这些一阶估计进行精化，得到最优估计。(3)韵律生成规则的自动获取研究韵律生成规则的自动获取。从用上述方法获得的大量语音材料的分析结果中发现，对于合成日语朗读语音的重音命令的幅度和短语命令的幅度，三级量化在感知上都是可以接受的。

项目成果

Hiroya Fujisaki: "Pre-processing of fundamental frequency contours of speech for automatic parameter extraction"Proceedings of the 5th International Conference of Signal Processing. 2. 722-725 (2000)

Hiroya Fujisaki：“用于自动参数提取的语音基频轮廓的预处理”第五届国际信号处理会议论文集。

Shuichi Narusawa: "A method for automatic extraction of parameters of the fundamental frequency contour"Proceedings of the 6th International Conference on Spoken Language Processing. 1. 649-652 (2000)

Shuichi Narusawa：“一种自动提取基频轮廓参数的方法”第六届国际口语处理会议论文集。

成澤修一: "日本語朗読音声の基本周波数パターンのパラメータ自動推定およびその生成規則の自動獲得"日本音響学会2001年春季研究発表会講演論文集. 1. 259-260 (2001)

Shuichi Narisawa：“日语背诵语音基频模式的自动参数估计及其生成规则的自动获取”日本声学学会 2001 年春季研究会议论文集 1. 259-260 (2001)。

Hiroya FUJISAKI, Sumio OHNO, and Shuichi NARUSAWA: "A automatic estimation of input commands for generation of fundamental frequency contours in Japanese text reading"Record of 1999 Autumn Meeting, Acoustical Society of Japan. vol.1. 269-270 (1999)

Hiroya FUJISAKI、Sumio OHNO 和 Shuichi NARUSAWA：“在日语文本阅读中自动估计用于生成基频轮廓的输入命令”日本声学学会 1999 年秋季会议记录。

Hiroya FUJISAKI, Shuichi NARUSAWA, Masako MARUNO, and Sumio OHNO: "Estimation of model parameters from smoothed fundamental frequency contours of Japanese text reading"Record of 2000 Spring Meeting, Acoustical Society of Japan. vol.1. 225-226 (2000)

Hiroya FUJISAKI、Shuichi NARUSAWA、Masako MARUNO 和 Sumio OHNO：“根据日语文本阅读的平滑基频轮廓估计模型参数”日本声学学会 2000 年春季会议记录。